1990 Illinois USDA Hardiness Zone Map
View the new 2023 Illinois Hardiness Zone Map
| Zone 4b -25°F to -20°F | Zone 5a -20°F to -15°F | Zone 5b -15°F to -10°F |
| Zone 6a -10°F to -5°F | Zone 6b -5°F to 0°F |
Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the state of Illinois which ranges from USDA Zone 4b to USDA Zone 6b.
1990 USDA Hardiness Zone Maps for Neighboring States and Provinces
Related Illinois Maps:
List of 1990 Hardiness Zones for Cities in Illinois
| Location | Hardiness Zone |
|---|---|
| Abingdon | Zone 5a: -20°F to -15°F |
| Adair | Zone 5a: -20°F to -15°F |
| Addieville | Zone 6a: -10°F to -5°F |
| Addison | Zone 5a: -20°F to -15°F |
| Adeline | Zone 4b: -25°F to -20°F |
| Adrian | Zone 5a: -20°F to -15°F |
| Akin | Zone 6a: -10°F to -5°F |
| Akron | Zone 5a: -20°F to -15°F |
| Albany | Zone 5a: -20°F to -15°F |
| Albers | Zone 6a: -10°F to -5°F |
| Albion | Zone 6a: -10°F to -5°F |
| Alden | Zone 5a: -20°F to -15°F |
| Aledo | Zone 5a: -20°F to -15°F |
| Alexander | Zone 5b: -15°F to -10°F |
| Alexis | Zone 5a: -20°F to -15°F |
| Algonquin | Zone 5a: -20°F to -15°F |
| Alhambra | Zone 6a: -10°F to -5°F |
| Allendale | Zone 6a: -10°F to -5°F |
| Allenville | Zone 5b: -15°F to -10°F |
| Allerton | Zone 5b: -15°F to -10°F |
| Alma | Zone 5b: -15°F to -10°F |
| Alorton | Zone 6a: -10°F to -5°F |
| Alpha | Zone 5a: -20°F to -15°F |
| Alsey | Zone 5b: -15°F to -10°F |
| Alsip | Zone 5b: -15°F to -10°F |
| Altamont | Zone 5b: -15°F to -10°F |
| Alto Pass | Zone 6a: -10°F to -5°F |
| Alton | Zone 6a: -10°F to -5°F |
| Altona | Zone 5a: -20°F to -15°F |
| Alvin | Zone 5b: -15°F to -10°F |
| Amboy | Zone 5a: -20°F to -15°F |
| Anchor | Zone 5a: -20°F to -15°F |
| Ancona | Zone 5a: -20°F to -15°F |
| Andalusia | Zone 5a: -20°F to -15°F |
| Andover | Zone 5a: -20°F to -15°F |
| Anna | Zone 6a: -10°F to -5°F |
| Annapolis | Zone 5b: -15°F to -10°F |
| Annawan | Zone 5a: -20°F to -15°F |
| Antioch | Zone 5a: -20°F to -15°F |
| Apple River | Zone 5a: -20°F to -15°F |
| Arcola | Zone 5b: -15°F to -10°F |
| Arenzville | Zone 5b: -15°F to -10°F |
| Argenta | Zone 5b: -15°F to -10°F |
| Arlington | Zone 5a: -20°F to -15°F |
| Arlington Heights | Zone 5a: -20°F to -15°F |
| Armington | Zone 5a: -20°F to -15°F |
| Armstrong | Zone 5b: -15°F to -10°F |
| Aroma Park | Zone 5a: -20°F to -15°F |
| Arrowsmith | Zone 5a: -20°F to -15°F |
| Arthur | Zone 5b: -15°F to -10°F |
| Ashkum | Zone 5a: -20°F to -15°F |
| Ashland | Zone 5b: -15°F to -10°F |
| Ashley | Zone 6a: -10°F to -5°F |
| Ashmore | Zone 5b: -15°F to -10°F |
| Ashton | Zone 5a: -20°F to -15°F |
| Assumption | Zone 5b: -15°F to -10°F |
| Astoria | Zone 5a: -20°F to -15°F |
| Athens | Zone 5b: -15°F to -10°F |
| Atkinson | Zone 5a: -20°F to -15°F |
| Atlanta | Zone 5a: -20°F to -15°F |
| Atlas | Zone 5b: -15°F to -10°F |
| Atwater | Zone 5b: -15°F to -10°F |
| Atwood | Zone 5b: -15°F to -10°F |
| Auburn | Zone 5b: -15°F to -10°F |
| Augusta | Zone 5a: -20°F to -15°F |
| Aurora | Zone 5a: -20°F to -15°F |
| Ava | Zone 6a: -10°F to -5°F |
| Aviston | Zone 6a: -10°F to -5°F |
| Avon | Zone 5a: -20°F to -15°F |
| Baileyville | Zone 4b: -25°F to -20°F |
| Baldwin | Zone 6a: -10°F to -5°F |
| Banner | Zone 5a: -20°F to -15°F |
| Bannockburn | Zone 5a: -20°F to -15°F |
| Bardolph | Zone 5a: -20°F to -15°F |
| Barnhill | Zone 6a: -10°F to -5°F |
| Barrington | Zone 5a: -20°F to -15°F |
| Barrington Hills | Zone 5a: -20°F to -15°F |
| Barry | Zone 5b: -15°F to -10°F |
| Barstow | Zone 5a: -20°F to -15°F |
| Bartelso | Zone 6a: -10°F to -5°F |
| Bartlett | Zone 5a: -20°F to -15°F |
| Bartonville | Zone 5a: -20°F to -15°F |
| Basco | Zone 5a: -20°F to -15°F |
| Batavia | Zone 5a: -20°F to -15°F |
| Batchtown | Zone 5b: -15°F to -10°F |
| Bath | Zone 5a: -20°F to -15°F |
| Bay View Garden | Zone 5a: -20°F to -15°F |
| Baylis | Zone 5b: -15°F to -10°F |
| Beach Park | Zone 5a: -20°F to -15°F |
| Beardstown | Zone 5b: -15°F to -10°F |
| Beason | Zone 5b: -15°F to -10°F |
| Beaucoup | Zone 6a: -10°F to -5°F |
| Beaverville | Zone 5a: -20°F to -15°F |
| Beckemeyer | Zone 6a: -10°F to -5°F |
| Bedford Park | Zone 5b: -15°F to -10°F |
| Beecher | Zone 5b: -15°F to -10°F |
| Beecher City | Zone 5b: -15°F to -10°F |
| Belgium | Zone 5a: -20°F to -15°F |
| Belknap | Zone 6a: -10°F to -5°F |
| Belle Prairie City | Zone 6a: -10°F to -5°F |
| Belle Rive | Zone 6a: -10°F to -5°F |
| Belleville | Zone 6a: -10°F to -5°F |
| Bellevue | Zone 5a: -20°F to -15°F |
| Bellflower | Zone 5a: -20°F to -15°F |
| Bellmont | Zone 6a: -10°F to -5°F |
| Bellwood | Zone 5b: -15°F to -10°F |
| Belvidere | Zone 5a: -20°F to -15°F |
| Bement | Zone 5b: -15°F to -10°F |
| Benld | Zone 5b: -15°F to -10°F |
| Bensenville | Zone 5b: -15°F to -10°F |
| Benson | Zone 5a: -20°F to -15°F |
| Bentley | Zone 5a: -20°F to -15°F |
| Benton | Zone 6a: -10°F to -5°F |
| Berkeley | Zone 5b: -15°F to -10°F |
| Berlin | Zone 5b: -15°F to -10°F |
| Berwick | Zone 5a: -20°F to -15°F |
| Berwyn | Zone 5b: -15°F to -10°F |
| Bethalto | Zone 6a: -10°F to -5°F |
| Bethany | Zone 5b: -15°F to -10°F |
| Big Rock | Zone 5a: -20°F to -15°F |
| Biggsville | Zone 5a: -20°F to -15°F |
| Bingham | Zone 5b: -15°F to -10°F |
| Birds | Zone 5b: -15°F to -10°F |
| Birmingham | Zone 5a: -20°F to -15°F |
| Bishop Hill | Zone 5a: -20°F to -15°F |
| Bismarck | Zone 5b: -15°F to -10°F |
| Blackstone | Zone 5a: -20°F to -15°F |
| Blandinsville | Zone 5a: -20°F to -15°F |
| Bloomingdale | Zone 5a: -20°F to -15°F |
| Bloomington | Zone 5a: -20°F to -15°F |
| Blue Island | Zone 5b: -15°F to -10°F |
| Blue Mound | Zone 5b: -15°F to -10°F |
| Blue Ridge | Zone 5a: -20°F to -15°F |
| Bluff Springs | Zone 5b: -15°F to -10°F |
| Bluffs | Zone 5b: -15°F to -10°F |
| Bluford | Zone 5b: -15°F to -10°F |
| Boles | Zone 6a: -10°F to -5°F |
| Bolingbrook | Zone 5a: -20°F to -15°F |
| Bondville | Zone 5b: -15°F to -10°F |
| Bone Gap | Zone 6a: -10°F to -5°F |
| Bonfield | Zone 5a: -20°F to -15°F |
| Bonnie | Zone 6a: -10°F to -5°F |
| Boody | Zone 5b: -15°F to -10°F |
| Boulder Hill | Zone 5a: -20°F to -15°F |
| Bourbonnais | Zone 5a: -20°F to -15°F |
| Bowen | Zone 5a: -20°F to -15°F |
| Boynton | Zone 5a: -20°F to -15°F |
| Braceville | Zone 5a: -20°F to -15°F |
| Bradford | Zone 5a: -20°F to -15°F |
| Bradley | Zone 5a: -20°F to -15°F |
| Braidwood | Zone 5a: -20°F to -15°F |
| Breese | Zone 6a: -10°F to -5°F |
| Bridgeport | Zone 6a: -10°F to -5°F |
| Bridgeview | Zone 5b: -15°F to -10°F |
| Brighton | Zone 5b: -15°F to -10°F |
| Brimfield | Zone 5a: -20°F to -15°F |
| Bristol | Zone 5a: -20°F to -15°F |
| Broadlands | Zone 5b: -15°F to -10°F |
| Broadview | Zone 5b: -15°F to -10°F |
| Broadwell | Zone 5b: -15°F to -10°F |
| Brocton | Zone 5b: -15°F to -10°F |
| Brookfield | Zone 5b: -15°F to -10°F |
| Brooklyn | Zone 6a: -10°F to -5°F |
| Brookport | Zone 6a: -10°F to -5°F |
| Broughton | Zone 6a: -10°F to -5°F |
| Browning | Zone 5b: -15°F to -10°F |
| Browns | Zone 6a: -10°F to -5°F |
| Brownstown | Zone 5b: -15°F to -10°F |
| Brussels | Zone 5b: -15°F to -10°F |
| Bryant | Zone 5a: -20°F to -15°F |
| Buckingham | Zone 5a: -20°F to -15°F |
| Buckley | Zone 5a: -20°F to -15°F |
| Buckner | Zone 6a: -10°F to -5°F |
| Buda | Zone 5a: -20°F to -15°F |
| Buffalo | Zone 5b: -15°F to -10°F |
| Buffalo Grove | Zone 5a: -20°F to -15°F |
| Buffalo Hart | Zone 5b: -15°F to -10°F |
| Buffalo Prairie | Zone 5a: -20°F to -15°F |
| Bull Valley | Zone 5a: -20°F to -15°F |
| Bulpitt | Zone 5b: -15°F to -10°F |
| Buncombe | Zone 6a: -10°F to -5°F |
| Bunker Hill | Zone 5b: -15°F to -10°F |
| Burbank | Zone 5b: -15°F to -10°F |
| Bureau | Zone 5a: -20°F to -15°F |
| Burlington | Zone 5a: -20°F to -15°F |
| Burnham | Zone 5b: -15°F to -10°F |
| Burnside | Zone 5a: -20°F to -15°F |
| Burnt Prairie | Zone 6a: -10°F to -5°F |
| Burr Ridge | Zone 5b: -15°F to -10°F |
| Bush | Zone 6a: -10°F to -5°F |
| Bushnell | Zone 5a: -20°F to -15°F |
| Butler | Zone 5b: -15°F to -10°F |
| Byron | Zone 4b: -25°F to -20°F |
| Cabery | Zone 5a: -20°F to -15°F |
| Cache | Zone 6b: -5°F to 0°F |
| Cahokia | Zone 6a: -10°F to -5°F |
| Cairo | Zone 6b: -5°F to 0°F |
| Caledonia | Zone 5a: -20°F to -15°F |
| Calhoun | Zone 5b: -15°F to -10°F |
| Calumet City | Zone 5b: -15°F to -10°F |
| Calumet Park | Zone 5b: -15°F to -10°F |
| Camargo | Zone 5b: -15°F to -10°F |
| Cambria | Zone 6a: -10°F to -5°F |
| Cambridge | Zone 5a: -20°F to -15°F |
| Camden | Zone 5a: -20°F to -15°F |
| Cameron | Zone 5a: -20°F to -15°F |
| Camp Grove | Zone 5a: -20°F to -15°F |
| Camp Point | Zone 5a: -20°F to -15°F |
| Campbell Hill | Zone 6a: -10°F to -5°F |
| Campus | Zone 5a: -20°F to -15°F |
| Canton | Zone 5a: -20°F to -15°F |
| Cantrall | Zone 5b: -15°F to -10°F |
| Capron | Zone 5a: -20°F to -15°F |
| Carbon Cliff | Zone 5a: -20°F to -15°F |
| Carbon Hill | Zone 5a: -20°F to -15°F |
| Carbondale | Zone 6a: -10°F to -5°F |
| Carlinville | Zone 5b: -15°F to -10°F |
| Carlock | Zone 5a: -20°F to -15°F |
| Carlyle | Zone 6a: -10°F to -5°F |
| Carman | Zone 5a: -20°F to -15°F |
| Carmi | Zone 6a: -10°F to -5°F |
| Carol Stream | Zone 5a: -20°F to -15°F |
| Carpentersville | Zone 5a: -20°F to -15°F |
| Carrier Mills | Zone 6a: -10°F to -5°F |
| Carrollton | Zone 5b: -15°F to -10°F |
| Carterville | Zone 6a: -10°F to -5°F |
| Carthage | Zone 5a: -20°F to -15°F |
| Cary | Zone 5a: -20°F to -15°F |
| Casey | Zone 5b: -15°F to -10°F |
| Caseyville | Zone 6a: -10°F to -5°F |
| Castleton | Zone 5a: -20°F to -15°F |
| Catlin | Zone 5b: -15°F to -10°F |
| Cave-in-Rock | Zone 6b: -5°F to 0°F |
| Cazenovia | Zone 5a: -20°F to -15°F |
| Cedar Point | Zone 5a: -20°F to -15°F |
| Cedarville | Zone 5a: -20°F to -15°F |
| Central City | Zone 6a: -10°F to -5°F |
| Centralia | Zone 6a: -10°F to -5°F |
| Centreville | Zone 6a: -10°F to -5°F |
| Cerro Gordo | Zone 5b: -15°F to -10°F |
| Chadwick | Zone 4b: -25°F to -20°F |
| Chambersburg | Zone 5b: -15°F to -10°F |
| Champaign | Zone 5b: -15°F to -10°F |
| Chana | Zone 4b: -25°F to -20°F |
| Chandlerville | Zone 5b: -15°F to -10°F |
| Channahon | Zone 5a: -20°F to -15°F |
| Channel Lake | Zone 5a: -20°F to -15°F |
| Chapin | Zone 5b: -15°F to -10°F |
| Charleston | Zone 5b: -15°F to -10°F |
| Charlotte | Zone 5a: -20°F to -15°F |
| Chatham | Zone 5b: -15°F to -10°F |
| Chatsworth | Zone 5a: -20°F to -15°F |
| Chebanse | Zone 5a: -20°F to -15°F |
| Chemung | Zone 5a: -20°F to -15°F |
| Chenoa | Zone 5a: -20°F to -15°F |
| Cherry | Zone 5a: -20°F to -15°F |
| Cherry Valley | Zone 5a: -20°F to -15°F |
| Chester | Zone 6a: -10°F to -5°F |
| Chesterfield | Zone 5b: -15°F to -10°F |
| Chestnut | Zone 5b: -15°F to -10°F |
| Chestnut Mountain Resort | Zone 5a: -20°F to -15°F |
| Chicago | Zone 5b: -15°F to -10°F |
| Chicago / Northerly Island | Zone 5b: -15°F to -10°F |
| Chicago Heights | Zone 5b: -15°F to -10°F |
| Chicago O'Hare International | Zone 5b: -15°F to -10°F |
| Chicago Ridge | Zone 5b: -15°F to -10°F |
| Chicago/Midway Arpt | Zone 5b: -15°F to -10°F |
| Chicago/O'Hare International Airport | Zone 5b: -15°F to -10°F |
| Chillicothe | Zone 5a: -20°F to -15°F |
| Chrisman | Zone 5b: -15°F to -10°F |
| Christopher | Zone 6a: -10°F to -5°F |
| Cicero | Zone 5b: -15°F to -10°F |
| Cisco | Zone 5b: -15°F to -10°F |
| Cisne | Zone 5b: -15°F to -10°F |
| Cissna Park | Zone 5a: -20°F to -15°F |
| Clare | Zone 5a: -20°F to -15°F |
| Claremont | Zone 5b: -15°F to -10°F |
| Clarendon Hills | Zone 5b: -15°F to -10°F |
| Clarksburg | Zone 5b: -15°F to -10°F |
| Clay City | Zone 5b: -15°F to -10°F |
| Clayton | Zone 5a: -20°F to -15°F |
| Claytonville | Zone 5a: -20°F to -15°F |
| Clear Lake | Zone 5b: -15°F to -10°F |
| Cleveland | Zone 5a: -20°F to -15°F |
| Clifton | Zone 5a: -20°F to -15°F |
| Clinton | Zone 5b: -15°F to -10°F |
| Coal City | Zone 5a: -20°F to -15°F |
| Coal Valley | Zone 5a: -20°F to -15°F |
| Coalton | Zone 5b: -15°F to -10°F |
| Coatsburg | Zone 5a: -20°F to -15°F |
| Cobden | Zone 6a: -10°F to -5°F |
| Coello | Zone 6a: -10°F to -5°F |
| Coffeen | Zone 5b: -15°F to -10°F |
| Colchester | Zone 5a: -20°F to -15°F |
| Coldbrook | Zone 5a: -20°F to -15°F |
| Coleta | Zone 4b: -25°F to -20°F |
| Colfax | Zone 5a: -20°F to -15°F |
| Collinsville | Zone 6a: -10°F to -5°F |
| Collison | Zone 5b: -15°F to -10°F |
| Colona | Zone 5a: -20°F to -15°F |
| Colp | Zone 6a: -10°F to -5°F |
| Columbia | Zone 6a: -10°F to -5°F |
| Columbus | Zone 5b: -15°F to -10°F |
| Colusa | Zone 5a: -20°F to -15°F |
| Como | Zone 5a: -20°F to -15°F |
| Compton | Zone 5a: -20°F to -15°F |
| Concord | Zone 5b: -15°F to -10°F |
| Congerville | Zone 5a: -20°F to -15°F |
| Cooksville | Zone 5a: -20°F to -15°F |
| Coral | Zone 5a: -20°F to -15°F |
| Cordova | Zone 5a: -20°F to -15°F |
| Cornell | Zone 5a: -20°F to -15°F |
| Cornland | Zone 5b: -15°F to -10°F |
| Cortland | Zone 5a: -20°F to -15°F |
| Cottage Hills | Zone 6a: -10°F to -5°F |
| Cotton Hill | Zone 5b: -15°F to -10°F |
| Coulterville | Zone 6a: -10°F to -5°F |
| Country Club Hills | Zone 5b: -15°F to -10°F |
| Countryside | Zone 5b: -15°F to -10°F |
| Cowden | Zone 5b: -15°F to -10°F |
| Coyne Center | Zone 5a: -20°F to -15°F |
| Crab Orchard | Zone 6a: -10°F to -5°F |
| Crainville | Zone 6a: -10°F to -5°F |
| Creal Springs | Zone 6a: -10°F to -5°F |
| Crescent City | Zone 5a: -20°F to -15°F |
| Crest Hill | Zone 5a: -20°F to -15°F |
| Cresthill | Zone 5a: -20°F to -15°F |
| Creston | Zone 5a: -20°F to -15°F |
| Crestwood | Zone 5b: -15°F to -10°F |
| Crete | Zone 5b: -15°F to -10°F |
| Creve Coeur | Zone 5a: -20°F to -15°F |
| Cropsey | Zone 5a: -20°F to -15°F |
| Crossville | Zone 6a: -10°F to -5°F |
| Cruger | Zone 5a: -20°F to -15°F |
| Crystal Lake | Zone 5a: -20°F to -15°F |
| Crystal Lawns | Zone 5a: -20°F to -15°F |
| Cuba | Zone 5a: -20°F to -15°F |
| Cullom | Zone 5a: -20°F to -15°F |
| Curran | Zone 5b: -15°F to -10°F |
| Cutler | Zone 6a: -10°F to -5°F |
| Cypress | Zone 6a: -10°F to -5°F |
| Dahinda | Zone 5a: -20°F to -15°F |
| Dahlgren | Zone 6a: -10°F to -5°F |
| Dakota | Zone 4b: -25°F to -20°F |
| Dale | Zone 6a: -10°F to -5°F |
| Dallas City | Zone 5a: -20°F to -15°F |
| Dalton City | Zone 5b: -15°F to -10°F |
| Dalzell | Zone 5a: -20°F to -15°F |
| Damiansville | Zone 6a: -10°F to -5°F |
| Dana | Zone 5a: -20°F to -15°F |
| Danforth | Zone 5a: -20°F to -15°F |
| Danvers | Zone 5a: -20°F to -15°F |
| Danville | Zone 5b: -15°F to -10°F |
| Darien | Zone 5b: -15°F to -10°F |
| Darmstadt | Zone 6a: -10°F to -5°F |
| Davis | Zone 4b: -25°F to -20°F |
| Davis Junction | Zone 4b: -25°F to -20°F |
| Dawson | Zone 5b: -15°F to -10°F |
| Dayton | Zone 5a: -20°F to -15°F |
| De Land | Zone 5b: -15°F to -10°F |
| De Soto | Zone 6a: -10°F to -5°F |
| De Witt | Zone 5a: -20°F to -15°F |
| Decatur | Zone 5b: -15°F to -10°F |
| Deer Creek | Zone 5a: -20°F to -15°F |
| Deer Grove | Zone 5a: -20°F to -15°F |
| Deer Park | Zone 5a: -20°F to -15°F |
| Deerfield | Zone 5b: -15°F to -10°F |
| DeKalb | Zone 5a: -20°F to -15°F |
| Delavan | Zone 5a: -20°F to -15°F |
| Dennison | Zone 5b: -15°F to -10°F |
| Depue | Zone 5a: -20°F to -15°F |
| Des Plaines | Zone 5b: -15°F to -10°F |
| Detroit | Zone 5b: -15°F to -10°F |
| Dewey | Zone 5b: -15°F to -10°F |
| Dewitt | Zone 5a: -20°F to -15°F |
| Diamond | Zone 5a: -20°F to -15°F |
| Dieterich | Zone 5b: -15°F to -10°F |
| Dillon | Zone 5a: -20°F to -15°F |
| Divernon | Zone 5b: -15°F to -10°F |
| Dix | Zone 6a: -10°F to -5°F |
| Dixmoor | Zone 5b: -15°F to -10°F |
| Dixon | Zone 5a: -20°F to -15°F |
| Dolton | Zone 5b: -15°F to -10°F |
| Dongola | Zone 6a: -10°F to -5°F |
| Donnellson | Zone 5b: -15°F to -10°F |
| Donovan | Zone 5a: -20°F to -15°F |
| Dorchester | Zone 5b: -15°F to -10°F |
| Dorsey | Zone 6a: -10°F to -5°F |
| Dover | Zone 5a: -20°F to -15°F |
| Dow | Zone 5b: -15°F to -10°F |
| Dowell | Zone 6a: -10°F to -5°F |
| Downers Grove | Zone 5b: -15°F to -10°F |
| Downs | Zone 5a: -20°F to -15°F |
| Du Bois | Zone 6a: -10°F to -5°F |
| Du Quoin | Zone 6a: -10°F to -5°F |
| Dundas | Zone 5b: -15°F to -10°F |
| Dundee | Zone 5a: -20°F to -15°F |
| Dunfermline | Zone 5a: -20°F to -15°F |
| Dunlap | Zone 5a: -20°F to -15°F |
| Dupo | Zone 6a: -10°F to -5°F |
| Durand | Zone 4b: -25°F to -20°F |
| Dwight | Zone 5a: -20°F to -15°F |
| Eagarville | Zone 5b: -15°F to -10°F |
| Eagerville | Zone 5b: -15°F to -10°F |
| Eagle Point | Zone 4b: -25°F to -20°F |
| Earlville | Zone 5a: -20°F to -15°F |
| East Alton | Zone 6a: -10°F to -5°F |
| East Brooklyn | Zone 5a: -20°F to -15°F |
| East Cape Girardeau | Zone 6b: -5°F to 0°F |
| East Carondelet | Zone 6a: -10°F to -5°F |
| East Dubuque | Zone 5a: -20°F to -15°F |
| East Dundee | Zone 5a: -20°F to -15°F |
| East Galesburg | Zone 5a: -20°F to -15°F |
| East Gillespie | Zone 5b: -15°F to -10°F |
| East Hazel Crest | Zone 5b: -15°F to -10°F |
| East Lynn | Zone 5b: -15°F to -10°F |
| East Moline | Zone 5a: -20°F to -15°F |
| East Peoria | Zone 5a: -20°F to -15°F |
| East Saint Louis | Zone 6a: -10°F to -5°F |
| Easton | Zone 5a: -20°F to -15°F |
| Eddyville | Zone 6a: -10°F to -5°F |
| Edelstein | Zone 5a: -20°F to -15°F |
| Edgewood | Zone 5b: -15°F to -10°F |
| Edgington | Zone 5a: -20°F to -15°F |
| Edinburg | Zone 5b: -15°F to -10°F |
| Edwards | Zone 5a: -20°F to -15°F |
| Edwardsville | Zone 6a: -10°F to -5°F |
| Effingham | Zone 5b: -15°F to -10°F |
| El Dara | Zone 5b: -15°F to -10°F |
| El Paso | Zone 5a: -20°F to -15°F |
| Elburn | Zone 5a: -20°F to -15°F |
| Eldena | Zone 5a: -20°F to -15°F |
| Eldorado | Zone 6a: -10°F to -5°F |
| Eldred | Zone 5b: -15°F to -10°F |
| Eleroy | Zone 5a: -20°F to -15°F |
| Elgin | Zone 5a: -20°F to -15°F |
| Eliza | Zone 5a: -20°F to -15°F |
| Elizabeth | Zone 5a: -20°F to -15°F |
| Elizabethtown | Zone 6b: -5°F to 0°F |
| Elk Grove Village | Zone 5a: -20°F to -15°F |
| Elkhart | Zone 5b: -15°F to -10°F |
| Elkville | Zone 6a: -10°F to -5°F |
| Ellery | Zone 6a: -10°F to -5°F |
| Elliott | Zone 5a: -20°F to -15°F |
| Ellis Grove | Zone 6a: -10°F to -5°F |
| Ellisville | Zone 5a: -20°F to -15°F |
| Ellsworth | Zone 5a: -20°F to -15°F |
| Elmhurst | Zone 5b: -15°F to -10°F |
| Elmira | Zone 5a: -20°F to -15°F |
| Elmwood | Zone 5a: -20°F to -15°F |
| Elmwood Park | Zone 5b: -15°F to -10°F |
| Elsah | Zone 5b: -15°F to -10°F |
| Elvaston | Zone 5a: -20°F to -15°F |
| Elwin | Zone 5b: -15°F to -10°F |
| Elwood | Zone 5a: -20°F to -15°F |
| Emden | Zone 5a: -20°F to -15°F |
| Emington | Zone 5a: -20°F to -15°F |
| Emma | Zone 6a: -10°F to -5°F |
| Empire | Zone 5a: -20°F to -15°F |
| Energy | Zone 6a: -10°F to -5°F |
| Enfield | Zone 6a: -10°F to -5°F |
| Eola | Zone 5a: -20°F to -15°F |
| Equality | Zone 6a: -10°F to -5°F |
| Erie | Zone 5a: -20°F to -15°F |
| Esmond | Zone 5a: -20°F to -15°F |
| Essex | Zone 5a: -20°F to -15°F |
| Eureka | Zone 5a: -20°F to -15°F |
| Evanston | Zone 5b: -15°F to -10°F |
| Evansville | Zone 6a: -10°F to -5°F |
| Evergreen Park | Zone 5b: -15°F to -10°F |
| Ewing | Zone 6a: -10°F to -5°F |
| Exeter | Zone 5b: -15°F to -10°F |
| Fairbury | Zone 5a: -20°F to -15°F |
| Fairfield | Zone 6a: -10°F to -5°F |
| Fairmont | Zone 5b: -15°F to -10°F |
| Fairmont City | Zone 6a: -10°F to -5°F |
| Fairmount | Zone 5b: -15°F to -10°F |
| Fairview | Zone 5a: -20°F to -15°F |
| Fairview Heights | Zone 6a: -10°F to -5°F |
| Farina | Zone 5b: -15°F to -10°F |
| Farmer City | Zone 5a: -20°F to -15°F |
| Farmersville | Zone 5b: -15°F to -10°F |
| Farmington | Zone 5a: -20°F to -15°F |
| Fayetteville | Zone 6a: -10°F to -5°F |
| Fenton | Zone 5a: -20°F to -15°F |
| Ferris | Zone 5a: -20°F to -15°F |
| Fiatt | Zone 5a: -20°F to -15°F |
| Fidelity | Zone 5b: -15°F to -10°F |
| Fieldon | Zone 5b: -15°F to -10°F |
| Fillmore | Zone 5b: -15°F to -10°F |
| Findlay | Zone 5b: -15°F to -10°F |
| Fisher | Zone 5b: -15°F to -10°F |
| Fithian | Zone 5b: -15°F to -10°F |
| Flagg | Zone 5a: -20°F to -15°F |
| Flanagan | Zone 5a: -20°F to -15°F |
| Flat Rock | Zone 5b: -15°F to -10°F |
| Flora | Zone 5b: -15°F to -10°F |
| Floraville | Zone 6a: -10°F to -5°F |
| Florence | Zone 5b: -15°F to -10°F |
| Flossmoor | Zone 5b: -15°F to -10°F |
| Foosland | Zone 5a: -20°F to -15°F |
| Ford Heights | Zone 5b: -15°F to -10°F |
| Forest City | Zone 5a: -20°F to -15°F |
| Forest Lake | Zone 5a: -20°F to -15°F |
| Forest Park | Zone 5b: -15°F to -10°F |
| Forest View | Zone 5b: -15°F to -10°F |
| Forrest | Zone 5a: -20°F to -15°F |
| Forreston | Zone 4b: -25°F to -20°F |
| Forsyth | Zone 5b: -15°F to -10°F |
| Fort Sheridan | Zone 5a: -20°F to -15°F |
| Fowler | Zone 5b: -15°F to -10°F |
| Fox Lake | Zone 5a: -20°F to -15°F |
| Fox Lake Hills | Zone 5a: -20°F to -15°F |
| Fox River Grove | Zone 5a: -20°F to -15°F |
| Fox River Valley Gardens | Zone 5a: -20°F to -15°F |
| Fox Valley | Zone 5b: -15°F to -10°F |
| Frankfort | Zone 5b: -15°F to -10°F |
| Frankfort Heights | Zone 6a: -10°F to -5°F |
| Frankfort Square | Zone 5b: -15°F to -10°F |
| Franklin | Zone 5b: -15°F to -10°F |
| Franklin Grove | Zone 5a: -20°F to -15°F |
| Franklin Park | Zone 5b: -15°F to -10°F |
| Frederick | Zone 5b: -15°F to -10°F |
| Freeburg | Zone 6a: -10°F to -5°F |
| Freeman Spur | Zone 6a: -10°F to -5°F |
| Freeport | Zone 5a: -20°F to -15°F |
| Fulton | Zone 5a: -20°F to -15°F |
| Fults | Zone 6a: -10°F to -5°F |
| Funks Grove | Zone 5a: -20°F to -15°F |
| Gages Lake | Zone 5a: -20°F to -15°F |
| Galatia | Zone 6a: -10°F to -5°F |
| Galena | Zone 5a: -20°F to -15°F |
| Galesburg | Zone 5a: -20°F to -15°F |
| Galt | Zone 5a: -20°F to -15°F |
| Galva | Zone 5a: -20°F to -15°F |
| Garden Plain | Zone 5a: -20°F to -15°F |
| Garden Prairie | Zone 5a: -20°F to -15°F |
| Gardner | Zone 5a: -20°F to -15°F |
| Garrett | Zone 5b: -15°F to -10°F |
| Gays | Zone 5b: -15°F to -10°F |
| Geff | Zone 5b: -15°F to -10°F |
| Geneseo | Zone 5a: -20°F to -15°F |
| Geneva | Zone 5a: -20°F to -15°F |
| Genoa | Zone 5a: -20°F to -15°F |
| Georgetown | Zone 5a: -20°F to -15°F |
| Gerlaw | Zone 5a: -20°F to -15°F |
| German Valley | Zone 4b: -25°F to -20°F |
| Germantown | Zone 6a: -10°F to -5°F |
| Germantown Hills | Zone 5a: -20°F to -15°F |
| Gibson City | Zone 5a: -20°F to -15°F |
| Gifford | Zone 5b: -15°F to -10°F |
| Gilberts | Zone 5a: -20°F to -15°F |
| Gillespie | Zone 5b: -15°F to -10°F |
| Gilman | Zone 5a: -20°F to -15°F |
| Gilson | Zone 5a: -20°F to -15°F |
| Girard | Zone 5b: -15°F to -10°F |
| Gladstone | Zone 5a: -20°F to -15°F |
| Glasford | Zone 5a: -20°F to -15°F |
| Glasgow | Zone 5b: -15°F to -10°F |
| Glen Carbon | Zone 6a: -10°F to -5°F |
| Glen Ellyn | Zone 5a: -20°F to -15°F |
| Glenarm | Zone 5b: -15°F to -10°F |
| Glenbard South | Zone 5a: -20°F to -15°F |
| Glencoe | Zone 5b: -15°F to -10°F |
| Glendale Heights | Zone 5a: -20°F to -15°F |
| Glenview | Zone 5b: -15°F to -10°F |
| Glenwood | Zone 5b: -15°F to -10°F |
| Godfrey | Zone 5b: -15°F to -10°F |
| Godley | Zone 5a: -20°F to -15°F |
| Golconda | Zone 6a: -10°F to -5°F |
| Golden | Zone 5a: -20°F to -15°F |
| Golden Eagle | Zone 5b: -15°F to -10°F |
| Golden Gate | Zone 6a: -10°F to -5°F |
| Golf | Zone 5b: -15°F to -10°F |
| Good Hope | Zone 5a: -20°F to -15°F |
| Goodfield | Zone 5a: -20°F to -15°F |
| Goodings Grove | Zone 5b: -15°F to -10°F |
| Goodwine | Zone 5a: -20°F to -15°F |
| Goofy Ridge | Zone 5a: -20°F to -15°F |
| Goreville | Zone 6a: -10°F to -5°F |
| Gorham | Zone 6a: -10°F to -5°F |
| Grafton | Zone 5b: -15°F to -10°F |
| Grand Chain | Zone 6b: -5°F to 0°F |
| Grand Detour | Zone 4b: -25°F to -20°F |
| Grand Ridge | Zone 5a: -20°F to -15°F |
| Grand Tower | Zone 6a: -10°F to -5°F |
| Grandview | Zone 5b: -15°F to -10°F |
| Grandwood Park | Zone 5a: -20°F to -15°F |
| Granite City | Zone 6a: -10°F to -5°F |
| Grant Park | Zone 5a: -20°F to -15°F |
| Grantfork | Zone 6a: -10°F to -5°F |
| Grantsburg | Zone 6a: -10°F to -5°F |
| Granville | Zone 5a: -20°F to -15°F |
| Graymont | Zone 5a: -20°F to -15°F |
| Grayslake | Zone 5a: -20°F to -15°F |
| Grayville | Zone 6a: -10°F to -5°F |
| Great Lakes | Zone 5a: -20°F to -15°F |
| Green Oaks | Zone 5a: -20°F to -15°F |
| Green Rock | Zone 5a: -20°F to -15°F |
| Green Valley | Zone 5a: -20°F to -15°F |
| Greenbush | Zone 5a: -20°F to -15°F |
| Greenfield | Zone 5b: -15°F to -10°F |
| Greenup | Zone 5b: -15°F to -10°F |
| Greenview | Zone 5b: -15°F to -10°F |
| Greenville | Zone 6a: -10°F to -5°F |
| Greenwood | Zone 5a: -20°F to -15°F |
| Gridley | Zone 5a: -20°F to -15°F |
| Griggsville | Zone 5b: -15°F to -10°F |
| Groveland | Zone 5a: -20°F to -15°F |
| Gulf Port | Zone 5a: -20°F to -15°F |
| Gurnee | Zone 5a: -20°F to -15°F |
| Hagarstown | Zone 5b: -15°F to -10°F |
| Hahnaman | Zone 5a: -20°F to -15°F |
| Hainesville | Zone 5a: -20°F to -15°F |
| Hamburg | Zone 5b: -15°F to -10°F |
| Hamel | Zone 6a: -10°F to -5°F |
| Hamilton | Zone 5a: -20°F to -15°F |
| Hamletsburg | Zone 6a: -10°F to -5°F |
| Hammond | Zone 5b: -15°F to -10°F |
| Hampshire | Zone 5a: -20°F to -15°F |
| Hampton | Zone 5a: -20°F to -15°F |
| Hanna City | Zone 5a: -20°F to -15°F |
| Hanover | Zone 5a: -20°F to -15°F |
| Hanover Park | Zone 5a: -20°F to -15°F |
| Hardin | Zone 5b: -15°F to -10°F |
| Harlem | Zone 5a: -20°F to -15°F |
| Harmon | Zone 5a: -20°F to -15°F |
| Harrisburg | Zone 6a: -10°F to -5°F |
| Harrison | Zone 6a: -10°F to -5°F |
| Harristown | Zone 5b: -15°F to -10°F |
| Hartford | Zone 6a: -10°F to -5°F |
| Hartland | Zone 5a: -20°F to -15°F |
| Hartsburg | Zone 5a: -20°F to -15°F |
| Harvard | Zone 5a: -20°F to -15°F |
| Harvel | Zone 5b: -15°F to -10°F |
| Harvey | Zone 5b: -15°F to -10°F |
| Harwood Heights | Zone 5b: -15°F to -10°F |
| Havana | Zone 5a: -20°F to -15°F |
| Hawthorn Woods | Zone 5a: -20°F to -15°F |
| Hazel Crest | Zone 5b: -15°F to -10°F |
| Hebron | Zone 5a: -20°F to -15°F |
| Hecker | Zone 6a: -10°F to -5°F |
| Henderson | Zone 5a: -20°F to -15°F |
| Hennepin | Zone 5a: -20°F to -15°F |
| Henning | Zone 5b: -15°F to -10°F |
| Henry | Zone 5a: -20°F to -15°F |
| Herald | Zone 6a: -10°F to -5°F |
| Herod | Zone 6a: -10°F to -5°F |
| Herrick | Zone 5b: -15°F to -10°F |
| Herrin | Zone 6a: -10°F to -5°F |
| Herscher | Zone 5a: -20°F to -15°F |
| Hettick | Zone 5b: -15°F to -10°F |
| Heyworth | Zone 5a: -20°F to -15°F |
| Hickory Hills | Zone 5b: -15°F to -10°F |
| Hidalgo | Zone 5b: -15°F to -10°F |
| Highland | Zone 6a: -10°F to -5°F |
| Highland Park | Zone 5b: -15°F to -10°F |
| Highwood | Zone 5b: -15°F to -10°F |
| Hillcrest | Zone 5a: -20°F to -15°F |
| Hillsboro | Zone 5b: -15°F to -10°F |
| Hillsdale | Zone 5a: -20°F to -15°F |
| Hillside | Zone 5b: -15°F to -10°F |
| Hillview | Zone 5b: -15°F to -10°F |
| Hinckley | Zone 5a: -20°F to -15°F |
| Hindsboro | Zone 5b: -15°F to -10°F |
| Hines | Zone 5b: -15°F to -10°F |
| Hinsdale | Zone 5b: -15°F to -10°F |
| Hodgkins | Zone 5b: -15°F to -10°F |
| Hoffman | Zone 6a: -10°F to -5°F |
| Hoffman Estates | Zone 5a: -20°F to -15°F |
| Holcomb | Zone 4b: -25°F to -20°F |
| Holiday Hills | Zone 5a: -20°F to -15°F |
| Holiday Shores | Zone 6a: -10°F to -5°F |
| Holland | Zone 5b: -15°F to -10°F |
| Hollis | Zone 5a: -20°F to -15°F |
| Hollowayville | Zone 5a: -20°F to -15°F |
| Homer | Zone 5b: -15°F to -10°F |
| Homer Glen | Zone 5b: -15°F to -10°F |
| Hometown | Zone 5b: -15°F to -10°F |
| Homewood | Zone 5b: -15°F to -10°F |
| Hoopeston | Zone 5b: -15°F to -10°F |
| Hooppole | Zone 5a: -20°F to -15°F |
| Hopedale | Zone 5a: -20°F to -15°F |
| Hopewell | Zone 5a: -20°F to -15°F |
| Hopkins Park | Zone 5a: -20°F to -15°F |
| Hoyleton | Zone 6a: -10°F to -5°F |
| Hudson | Zone 5a: -20°F to -15°F |
| Huey | Zone 6a: -10°F to -5°F |
| Hull | Zone 5b: -15°F to -10°F |
| Humboldt | Zone 5b: -15°F to -10°F |
| Hume | Zone 5b: -15°F to -10°F |
| Huntley | Zone 5a: -20°F to -15°F |
| Huntsville | Zone 5a: -20°F to -15°F |
| Hurst | Zone 6a: -10°F to -5°F |
| Hutsonville | Zone 5b: -15°F to -10°F |
| Illinois City | Zone 5a: -20°F to -15°F |
| Illiopolis | Zone 5b: -15°F to -10°F |
| Ina | Zone 6a: -10°F to -5°F |
| Indian Creek | Zone 5a: -20°F to -15°F |
| Indian Head Park | Zone 5b: -15°F to -10°F |
| Indianola | Zone 5b: -15°F to -10°F |
| Industry | Zone 5a: -20°F to -15°F |
| Ingalls Park | Zone 5b: -15°F to -10°F |
| Ingleside | Zone 5a: -20°F to -15°F |
| Ingraham | Zone 5b: -15°F to -10°F |
| Inverness | Zone 5a: -20°F to -15°F |
| Iola | Zone 5b: -15°F to -10°F |
| Ipava | Zone 5a: -20°F to -15°F |
| Iroquois | Zone 5a: -20°F to -15°F |
| Irving | Zone 5b: -15°F to -10°F |
| Irvington | Zone 6a: -10°F to -5°F |
| Irwin | Zone 5a: -20°F to -15°F |
| Island Grove | Zone 5b: -15°F to -10°F |
| Island Lake | Zone 5a: -20°F to -15°F |
| Itasca | Zone 5a: -20°F to -15°F |
| Iuka | Zone 5b: -15°F to -10°F |
| Ivesdale | Zone 5b: -15°F to -10°F |
| Jacksonville | Zone 5b: -15°F to -10°F |
| Jacob | Zone 6a: -10°F to -5°F |
| Jamaica | Zone 5b: -15°F to -10°F |
| Janesville | Zone 5b: -15°F to -10°F |
| Jeisyville | Zone 5b: -15°F to -10°F |
| Jerome | Zone 5b: -15°F to -10°F |
| Jerseyville | Zone 5b: -15°F to -10°F |
| Jewett | Zone 5b: -15°F to -10°F |
| Johannisburg | Zone 6a: -10°F to -5°F |
| Johnsburg | Zone 5a: -20°F to -15°F |
| Johnsonville | Zone 5b: -15°F to -10°F |
| Johnston City | Zone 6a: -10°F to -5°F |
| Joliet | Zone 5a: -20°F to -15°F |
| Jonesboro | Zone 6a: -10°F to -5°F |
| Joppa | Zone 6b: -5°F to 0°F |
| Joy | Zone 5a: -20°F to -15°F |
| Junction | Zone 6b: -5°F to 0°F |
| Junction City | Zone 6a: -10°F to -5°F |
| Justice | Zone 5b: -15°F to -10°F |
| Kampsville | Zone 5b: -15°F to -10°F |
| Kane | Zone 5b: -15°F to -10°F |
| Kaneville | Zone 5a: -20°F to -15°F |
| Kangley | Zone 5a: -20°F to -15°F |
| Kankakee | Zone 5a: -20°F to -15°F |
| Kansas | Zone 5b: -15°F to -10°F |
| Kappa | Zone 5a: -20°F to -15°F |
| Karbers Ridge | Zone 6b: -5°F to 0°F |
| Karnak | Zone 6b: -5°F to 0°F |
| Kasbeer | Zone 5a: -20°F to -15°F |
| Kaskaskia | Zone 6a: -10°F to -5°F |
| Keenes | Zone 5b: -15°F to -10°F |
| Keensburg | Zone 6a: -10°F to -5°F |
| Keithsburg | Zone 5a: -20°F to -15°F |
| Kell | Zone 5b: -15°F to -10°F |
| Kempton | Zone 5a: -20°F to -15°F |
| Kenilworth | Zone 5b: -15°F to -10°F |
| Kenney | Zone 5b: -15°F to -10°F |
| Kent | Zone 5a: -20°F to -15°F |
| Kewanee | Zone 5a: -20°F to -15°F |
| Keyesport | Zone 6a: -10°F to -5°F |
| Kickapoo | Zone 5a: -20°F to -15°F |
| Kilbourne | Zone 5a: -20°F to -15°F |
| Kildeer | Zone 5a: -20°F to -15°F |
| Kincaid | Zone 5b: -15°F to -10°F |
| Kinderhook | Zone 5b: -15°F to -10°F |
| Kingston | Zone 5a: -20°F to -15°F |
| Kingston Mines | Zone 5a: -20°F to -15°F |
| Kinmundy | Zone 5b: -15°F to -10°F |
| Kinsman | Zone 5a: -20°F to -15°F |
| Kirkland | Zone 5a: -20°F to -15°F |
| Kirkwood | Zone 5a: -20°F to -15°F |
| Knollwood | Zone 5a: -20°F to -15°F |
| Knoxville | Zone 5a: -20°F to -15°F |
| La Grange | Zone 5b: -15°F to -10°F |
| La Grange Park | Zone 5b: -15°F to -10°F |
| La Harpe | Zone 5a: -20°F to -15°F |
| La Moille | Zone 5a: -20°F to -15°F |
| La Place | Zone 5b: -15°F to -10°F |
| La Prairie | Zone 5a: -20°F to -15°F |
| La Rose | Zone 5a: -20°F to -15°F |
| La Salle | Zone 5a: -20°F to -15°F |
| La Salle/Peru | Zone 5a: -20°F to -15°F |
| Lacon | Zone 5a: -20°F to -15°F |
| Ladd | Zone 5a: -20°F to -15°F |
| Lafayette | Zone 5a: -20°F to -15°F |
| Lafox | Zone 5a: -20°F to -15°F |
| Lake Barrington | Zone 5a: -20°F to -15°F |
| Lake Bluff | Zone 5a: -20°F to -15°F |
| Lake Catherine | Zone 5a: -20°F to -15°F |
| Lake Forest | Zone 5a: -20°F to -15°F |
| Lake Fork | Zone 5b: -15°F to -10°F |
| Lake in the Hills | Zone 5a: -20°F to -15°F |
| Lake Ka-Ho | Zone 5b: -15°F to -10°F |
| Lake of the Woods | Zone 5b: -15°F to -10°F |
| Lake Summerset | Zone 4b: -25°F to -20°F |
| Lake Villa | Zone 5a: -20°F to -15°F |
| Lake Zurich | Zone 5a: -20°F to -15°F |
| Lakemoor | Zone 5a: -20°F to -15°F |
| Lakewood | Zone 5b: -15°F to -10°F |
| Lakewood Shores | Zone 5a: -20°F to -15°F |
| Lanark | Zone 4b: -25°F to -20°F |
| Lancaster | Zone 6a: -10°F to -5°F |
| Lane | Zone 5b: -15°F to -10°F |
| Lanesville | Zone 5b: -15°F to -10°F |
| Langleyville | Zone 5b: -15°F to -10°F |
| Lansing | Zone 5b: -15°F to -10°F |
| Latham | Zone 5b: -15°F to -10°F |
| Laura | Zone 5a: -20°F to -15°F |
| Lawndale | Zone 5b: -15°F to -10°F |
| Lawrenceville | Zone 6a: -10°F to -5°F |
| Le Roy | Zone 5a: -20°F to -15°F |
| Leaf River | Zone 4b: -25°F to -20°F |
| Lebanon | Zone 6a: -10°F to -5°F |
| Lee | Zone 5a: -20°F to -15°F |
| Lee Center | Zone 5a: -20°F to -15°F |
| Leland | Zone 5a: -20°F to -15°F |
| Leland Grove | Zone 5b: -15°F to -10°F |
| Lemont | Zone 5b: -15°F to -10°F |
| Lena | Zone 5a: -20°F to -15°F |
| Lenzburg | Zone 6a: -10°F to -5°F |
| Leonore | Zone 5a: -20°F to -15°F |
| Lerna | Zone 5b: -15°F to -10°F |
| Lewistown | Zone 5a: -20°F to -15°F |
| Lexington | Zone 5a: -20°F to -15°F |
| Liberty | Zone 5b: -15°F to -10°F |
| Libertyville | Zone 5a: -20°F to -15°F |
| Lily Lake | Zone 5a: -20°F to -15°F |
| Lima | Zone 5a: -20°F to -15°F |
| Limestone | Zone 5a: -20°F to -15°F |
| Lincoln | Zone 5b: -15°F to -10°F |
| Lincoln's New Salem | Zone 5b: -15°F to -10°F |
| Lincolnshire | Zone 5a: -20°F to -15°F |
| Lincolnwood | Zone 5b: -15°F to -10°F |
| Lindenhurst | Zone 5a: -20°F to -15°F |
| Lindenwood | Zone 4b: -25°F to -20°F |
| Lisbon | Zone 5a: -20°F to -15°F |
| Lisle | Zone 5a: -20°F to -15°F |
| Litchfield | Zone 5b: -15°F to -10°F |
| Literberry | Zone 5b: -15°F to -10°F |
| Little York | Zone 5a: -20°F to -15°F |
| Littleton | Zone 5a: -20°F to -15°F |
| Lively Grove | Zone 6a: -10°F to -5°F |
| Liverpool | Zone 5a: -20°F to -15°F |
| Livingston | Zone 6a: -10°F to -5°F |
| Loami | Zone 5b: -15°F to -10°F |
| Lockport | Zone 5b: -15°F to -10°F |
| Loda | Zone 5a: -20°F to -15°F |
| Logan | Zone 6a: -10°F to -5°F |
| Lomax | Zone 5a: -20°F to -15°F |
| Lombard | Zone 5a: -20°F to -15°F |
| London Mills | Zone 5a: -20°F to -15°F |
| Long Creek | Zone 5b: -15°F to -10°F |
| Long Grove | Zone 5a: -20°F to -15°F |
| Long Lake | Zone 5a: -20°F to -15°F |
| Long Point | Zone 5a: -20°F to -15°F |
| Longview | Zone 5b: -15°F to -10°F |
| Loogootee | Zone 5b: -15°F to -10°F |
| Loraine | Zone 5a: -20°F to -15°F |
| Loran | Zone 5a: -20°F to -15°F |
| Lost Nation | Zone 4b: -25°F to -20°F |
| Lostant | Zone 5a: -20°F to -15°F |
| Louisville | Zone 5b: -15°F to -10°F |
| Lovejoy | Zone 6a: -10°F to -5°F |
| Loves Park | Zone 5a: -20°F to -15°F |
| Lovington | Zone 5b: -15°F to -10°F |
| Lowder | Zone 5b: -15°F to -10°F |
| Lowpoint | Zone 5a: -20°F to -15°F |
| Ludlow | Zone 5b: -15°F to -10°F |
| Lyndon | Zone 5a: -20°F to -15°F |
| Lynn Center | Zone 5a: -20°F to -15°F |
| Lynnville | Zone 5b: -15°F to -10°F |
| Lynwood | Zone 5b: -15°F to -10°F |
| Lyons | Zone 5b: -15°F to -10°F |
| Macedonia | Zone 6a: -10°F to -5°F |
| Machesney Park | Zone 5a: -20°F to -15°F |
| Mackinaw | Zone 5a: -20°F to -15°F |
| Macomb | Zone 5a: -20°F to -15°F |
| Macon | Zone 5b: -15°F to -10°F |
| Madison | Zone 6a: -10°F to -5°F |
| Maeystown | Zone 6a: -10°F to -5°F |
| Magnolia | Zone 5a: -20°F to -15°F |
| Mahomet | Zone 5b: -15°F to -10°F |
| Makanda | Zone 6a: -10°F to -5°F |
| Malden | Zone 5a: -20°F to -15°F |
| Malta | Zone 5a: -20°F to -15°F |
| Manchester | Zone 5b: -15°F to -10°F |
| Manhattan | Zone 5b: -15°F to -10°F |
| Manito | Zone 5a: -20°F to -15°F |
| Manlius | Zone 5a: -20°F to -15°F |
| Mansfield | Zone 5b: -15°F to -10°F |
| Manteno | Zone 5a: -20°F to -15°F |
| Maple Park | Zone 5a: -20°F to -15°F |
| Mapleton | Zone 5a: -20°F to -15°F |
| Maquon | Zone 5a: -20°F to -15°F |
| Marengo | Zone 5a: -20°F to -15°F |
| Marietta | Zone 5a: -20°F to -15°F |
| Marine | Zone 6a: -10°F to -5°F |
| Marion | Zone 6a: -10°F to -5°F |
| Marissa | Zone 6a: -10°F to -5°F |
| Mark | Zone 5a: -20°F to -15°F |
| Markham | Zone 5b: -15°F to -10°F |
| Maroa | Zone 5b: -15°F to -10°F |
| Marquette Heights | Zone 5a: -20°F to -15°F |
| Marseilles | Zone 5a: -20°F to -15°F |
| Marshall | Zone 5b: -15°F to -10°F |
| Martinsburg | Zone 5b: -15°F to -10°F |
| Martinsville | Zone 5b: -15°F to -10°F |
| Martinton | Zone 5a: -20°F to -15°F |
| Maryland | Zone 4b: -25°F to -20°F |
| Maryville | Zone 6a: -10°F to -5°F |
| Mascoutah | Zone 6a: -10°F to -5°F |
| Mason | Zone 5b: -15°F to -10°F |
| Mason City | Zone 5a: -20°F to -15°F |
| Matherville | Zone 5a: -20°F to -15°F |
| Matteson | Zone 5b: -15°F to -10°F |
| Mattoon | Zone 5b: -15°F to -10°F |
| Maunie | Zone 6a: -10°F to -5°F |
| Maywood | Zone 5b: -15°F to -10°F |
| Mazon | Zone 5a: -20°F to -15°F |
| McClure | Zone 6a: -10°F to -5°F |
| McConnell | Zone 4b: -25°F to -20°F |
| McCook | Zone 5b: -15°F to -10°F |
| McCullom Lake | Zone 5a: -20°F to -15°F |
| McHenry | Zone 5a: -20°F to -15°F |
| McLean | Zone 5a: -20°F to -15°F |
| McLeansboro | Zone 6a: -10°F to -5°F |
| McNabb | Zone 5a: -20°F to -15°F |
| Mechanicsburg | Zone 5b: -15°F to -10°F |
| Media | Zone 5a: -20°F to -15°F |
| Medinah | Zone 5a: -20°F to -15°F |
| Medora | Zone 5b: -15°F to -10°F |
| Melrose Park | Zone 5b: -15°F to -10°F |
| Melvin | Zone 5a: -20°F to -15°F |
| Menard | Zone 6a: -10°F to -5°F |
| Mendon | Zone 5a: -20°F to -15°F |
| Mendota | Zone 5a: -20°F to -15°F |
| Menominee | Zone 5a: -20°F to -15°F |
| Meredosia | Zone 5b: -15°F to -10°F |
| Merna | Zone 5a: -20°F to -15°F |
| Merrionette Park | Zone 5b: -15°F to -10°F |
| Metamora | Zone 5a: -20°F to -15°F |
| Metcalf | Zone 5b: -15°F to -10°F |
| Metropolis | Zone 6a: -10°F to -5°F |
| Mettawa | Zone 5a: -20°F to -15°F |
| Michael | Zone 5b: -15°F to -10°F |
| Middletown | Zone 5b: -15°F to -10°F |
| Midlothian | Zone 5b: -15°F to -10°F |
| Milan | Zone 5a: -20°F to -15°F |
| Milford | Zone 5a: -20°F to -15°F |
| Mill Creek | Zone 6a: -10°F to -5°F |
| Mill Shoals | Zone 6a: -10°F to -5°F |
| Millbrook | Zone 5a: -20°F to -15°F |
| Milledgeville | Zone 4b: -25°F to -20°F |
| Miller City | Zone 6b: -5°F to 0°F |
| Millersburg | Zone 5a: -20°F to -15°F |
| Millington | Zone 5a: -20°F to -15°F |
| Millstadt | Zone 6a: -10°F to -5°F |
| Milmine | Zone 5b: -15°F to -10°F |
| Milton | Zone 5b: -15°F to -10°F |
| Mineral | Zone 5a: -20°F to -15°F |
| Minier | Zone 5a: -20°F to -15°F |
| Minonk | Zone 5a: -20°F to -15°F |
| Minooka | Zone 5a: -20°F to -15°F |
| Mitchell | Zone 6a: -10°F to -5°F |
| Mode | Zone 5b: -15°F to -10°F |
| Modesto | Zone 5b: -15°F to -10°F |
| Modoc | Zone 6a: -10°F to -5°F |
| Mokena | Zone 5b: -15°F to -10°F |
| Moline | Zone 5a: -20°F to -15°F |
| Momence | Zone 5a: -20°F to -15°F |
| Monee | Zone 5b: -15°F to -10°F |
| Monmouth | Zone 5a: -20°F to -15°F |
| Monroe Center | Zone 5a: -20°F to -15°F |
| Montezuma | Zone 5b: -15°F to -10°F |
| Montgomery | Zone 5a: -20°F to -15°F |
| Monticello | Zone 5b: -15°F to -10°F |
| Montrose | Zone 5b: -15°F to -10°F |
| Mooseheart | Zone 5a: -20°F to -15°F |
| Moro | Zone 6a: -10°F to -5°F |
| Morris | Zone 5a: -20°F to -15°F |
| Morrison | Zone 5a: -20°F to -15°F |
| Morrisonville | Zone 5b: -15°F to -10°F |
| Morton | Zone 5a: -20°F to -15°F |
| Morton Grove | Zone 5b: -15°F to -10°F |
| Mossville | Zone 5a: -20°F to -15°F |
| Mound City | Zone 6b: -5°F to 0°F |
| Mounds | Zone 6b: -5°F to 0°F |
| Mount Auburn | Zone 5b: -15°F to -10°F |
| Mount Carmel | Zone 6a: -10°F to -5°F |
| Mount Carroll | Zone 4b: -25°F to -20°F |
| Mount Clare | Zone 5b: -15°F to -10°F |
| Mount Erie | Zone 6a: -10°F to -5°F |
| Mount Morris | Zone 4b: -25°F to -20°F |
| Mount Olive | Zone 5b: -15°F to -10°F |
| Mount Prospect | Zone 5a: -20°F to -15°F |
| Mount Pulaski | Zone 5b: -15°F to -10°F |
| Mount Sterling | Zone 5b: -15°F to -10°F |
| Mount Vernon | Zone 5b: -15°F to -10°F |
| Mount Zion | Zone 5b: -15°F to -10°F |
| Moweaqua | Zone 5b: -15°F to -10°F |
| Mozier | Zone 5b: -15°F to -10°F |
| Muddy | Zone 6a: -10°F to -5°F |
| Mulberry Grove | Zone 5b: -15°F to -10°F |
| Mulkeytown | Zone 6a: -10°F to -5°F |
| Muncie | Zone 5b: -15°F to -10°F |
| Mundelein | Zone 5a: -20°F to -15°F |
| Murdock | Zone 5b: -15°F to -10°F |
| Murphysboro | Zone 6a: -10°F to -5°F |
| Murrayville | Zone 5b: -15°F to -10°F |
| Nachusa | Zone 5a: -20°F to -15°F |
| Nameoki | Zone 6a: -10°F to -5°F |
| Naperville | Zone 5a: -20°F to -15°F |
| Naplate | Zone 5a: -20°F to -15°F |
| Naples | Zone 5b: -15°F to -10°F |
| Nashville | Zone 6a: -10°F to -5°F |
| Nason | Zone 6a: -10°F to -5°F |
| National City | Zone 6a: -10°F to -5°F |
| National Stock Yards | Zone 6a: -10°F to -5°F |
| Nauvoo | Zone 5a: -20°F to -15°F |
| Nebo | Zone 5b: -15°F to -10°F |
| Nelson | Zone 5a: -20°F to -15°F |
| Neoga | Zone 5b: -15°F to -10°F |
| Neponset | Zone 5a: -20°F to -15°F |
| Nevada | Zone 5a: -20°F to -15°F |
| New Athens | Zone 6a: -10°F to -5°F |
| New Baden | Zone 6a: -10°F to -5°F |
| New Bedford | Zone 5a: -20°F to -15°F |
| New Berlin | Zone 5b: -15°F to -10°F |
| New Boston | Zone 5a: -20°F to -15°F |
| New Burnside | Zone 6a: -10°F to -5°F |
| New Canton | Zone 5b: -15°F to -10°F |
| New Douglas | Zone 6a: -10°F to -5°F |
| New Grand Chain | Zone 6b: -5°F to 0°F |
| New Haven | Zone 6a: -10°F to -5°F |
| New Holland | Zone 5a: -20°F to -15°F |
| New Lenox | Zone 5b: -15°F to -10°F |
| New Memphis | Zone 6a: -10°F to -5°F |
| New Milford | Zone 4b: -25°F to -20°F |
| New Minden | Zone 6a: -10°F to -5°F |
| New Salem | Zone 5b: -15°F to -10°F |
| New Windsor | Zone 5a: -20°F to -15°F |
| Newark | Zone 5a: -20°F to -15°F |
| Newell | Zone 5b: -15°F to -10°F |
| Newman | Zone 5b: -15°F to -10°F |
| Newton | Zone 5b: -15°F to -10°F |
| Niantic | Zone 5b: -15°F to -10°F |
| Niles | Zone 5b: -15°F to -10°F |
| Nilwood | Zone 5b: -15°F to -10°F |
| Niota | Zone 5a: -20°F to -15°F |
| Noble | Zone 5b: -15°F to -10°F |
| Nokomis | Zone 5b: -15°F to -10°F |
| Nora | Zone 5a: -20°F to -15°F |
| Normal | Zone 5a: -20°F to -15°F |
| Norridge | Zone 5b: -15°F to -10°F |
| Norris | Zone 5a: -20°F to -15°F |
| Norris City | Zone 6a: -10°F to -5°F |
| North Aurora | Zone 5a: -20°F to -15°F |
| North Barrington | Zone 5a: -20°F to -15°F |
| North Chicago | Zone 5a: -20°F to -15°F |
| North Henderson | Zone 5a: -20°F to -15°F |
| North Pekin | Zone 5a: -20°F to -15°F |
| North Peoria | Zone 5a: -20°F to -15°F |
| North Riverside | Zone 5b: -15°F to -10°F |
| Northbrook | Zone 5b: -15°F to -10°F |
| Northfield | Zone 5b: -15°F to -10°F |
| Northlake | Zone 5b: -15°F to -10°F |
| Norwood | Zone 5a: -20°F to -15°F |
| O'Fallon | Zone 6a: -10°F to -5°F |
| Oak Brook | Zone 5b: -15°F to -10°F |
| Oak Forest | Zone 5b: -15°F to -10°F |
| Oak Grove | Zone 5a: -20°F to -15°F |
| Oak Lawn | Zone 5b: -15°F to -10°F |
| Oak Park | Zone 5b: -15°F to -10°F |
| Oak Run | Zone 5a: -20°F to -15°F |
| Oakbrook Terrace | Zone 5b: -15°F to -10°F |
| Oakdale | Zone 6a: -10°F to -5°F |
| Oakford | Zone 5a: -20°F to -15°F |
| Oakland | Zone 5b: -15°F to -10°F |
| Oakley | Zone 5b: -15°F to -10°F |
| Oakwood | Zone 5b: -15°F to -10°F |
| Oakwood Hills | Zone 5a: -20°F to -15°F |
| Oblong | Zone 5b: -15°F to -10°F |
| Oconee | Zone 5b: -15°F to -10°F |
| Odell | Zone 5a: -20°F to -15°F |
| Odin | Zone 6a: -10°F to -5°F |
| Ogden | Zone 5b: -15°F to -10°F |
| Oglesby | Zone 5a: -20°F to -15°F |
| Ohio | Zone 5a: -20°F to -15°F |
| Ohlman | Zone 5b: -15°F to -10°F |
| Okawville | Zone 6a: -10°F to -5°F |
| Old Mill Creek | Zone 5a: -20°F to -15°F |
| Old Ripley | Zone 6a: -10°F to -5°F |
| Old Shawneetown | Zone 6b: -5°F to 0°F |
| Olive Branch | Zone 6b: -5°F to 0°F |
| Olivet | Zone 5a: -20°F to -15°F |
| Olmsted | Zone 6b: -5°F to 0°F |
| Olney | Zone 5b: -15°F to -10°F |
| Olympia Fields | Zone 5b: -15°F to -10°F |
| Omaha | Zone 6a: -10°F to -5°F |
| Omega | Zone 5b: -15°F to -10°F |
| Onarga | Zone 5a: -20°F to -15°F |
| Oneco | Zone 4b: -25°F to -20°F |
| Oneida | Zone 5a: -20°F to -15°F |
| Opdyke | Zone 6a: -10°F to -5°F |
| Ophiem | Zone 5a: -20°F to -15°F |
| Oquawka | Zone 5a: -20°F to -15°F |
| Orangeville | Zone 4b: -25°F to -20°F |
| Oraville | Zone 6a: -10°F to -5°F |
| Oreana | Zone 5b: -15°F to -10°F |
| Oregon | Zone 4b: -25°F to -20°F |
| Orient | Zone 6a: -10°F to -5°F |
| Orion | Zone 5a: -20°F to -15°F |
| Orland Hills | Zone 5b: -15°F to -10°F |
| Orland Park | Zone 5b: -15°F to -10°F |
| Osceola | Zone 5a: -20°F to -15°F |
| Osco | Zone 5a: -20°F to -15°F |
| Oswego | Zone 5a: -20°F to -15°F |
| Ottawa | Zone 5a: -20°F to -15°F |
| Otterville | Zone 5b: -15°F to -10°F |
| Owaneco | Zone 5b: -15°F to -10°F |
| Ozark | Zone 6a: -10°F to -5°F |
| Paderborn | Zone 6a: -10°F to -5°F |
| Palatine | Zone 5a: -20°F to -15°F |
| Palestine | Zone 5b: -15°F to -10°F |
| Palmer | Zone 5b: -15°F to -10°F |
| Palmyra | Zone 5b: -15°F to -10°F |
| Paloma | Zone 5a: -20°F to -15°F |
| Palos Heights | Zone 5b: -15°F to -10°F |
| Palos Hills | Zone 5b: -15°F to -10°F |
| Palos Park | Zone 5b: -15°F to -10°F |
| Pana | Zone 5b: -15°F to -10°F |
| Panama | Zone 5b: -15°F to -10°F |
| Panola | Zone 5a: -20°F to -15°F |
| Papineau | Zone 5a: -20°F to -15°F |
| Paris | Zone 5b: -15°F to -10°F |
| Park City | Zone 5a: -20°F to -15°F |
| Park Forest | Zone 5b: -15°F to -10°F |
| Park Ridge | Zone 5b: -15°F to -10°F |
| Parkersburg | Zone 6a: -10°F to -5°F |
| Patoka | Zone 6a: -10°F to -5°F |
| Patterson | Zone 5b: -15°F to -10°F |
| Paw Paw | Zone 5a: -20°F to -15°F |
| Pawnee | Zone 5b: -15°F to -10°F |
| Paxton | Zone 5b: -15°F to -10°F |
| Payson | Zone 5b: -15°F to -10°F |
| Pearl | Zone 5b: -15°F to -10°F |
| Pearl City | Zone 5a: -20°F to -15°F |
| Pecatonica | Zone 4b: -25°F to -20°F |
| Pekin | Zone 5a: -20°F to -15°F |
| Pembroke Township | Zone 5a: -20°F to -15°F |
| Penfield | Zone 5b: -15°F to -10°F |
| Peoria | Zone 5a: -20°F to -15°F |
| Peoria Heights | Zone 5a: -20°F to -15°F |
| Peotone | Zone 5b: -15°F to -10°F |
| Percy | Zone 6a: -10°F to -5°F |
| Perks | Zone 6b: -5°F to 0°F |
| Perry | Zone 5b: -15°F to -10°F |
| Peru | Zone 5a: -20°F to -15°F |
| Pesotum | Zone 5b: -15°F to -10°F |
| Petersburg | Zone 5b: -15°F to -10°F |
| Phillipstown | Zone 6a: -10°F to -5°F |
| Philo | Zone 5b: -15°F to -10°F |
| Phoenix | Zone 5b: -15°F to -10°F |
| Piasa | Zone 5b: -15°F to -10°F |
| Pierron | Zone 6a: -10°F to -5°F |
| Pinckneyville | Zone 6a: -10°F to -5°F |
| Pingree Grove | Zone 5a: -20°F to -15°F |
| Piper City | Zone 5a: -20°F to -15°F |
| Pistakee Highlands | Zone 5a: -20°F to -15°F |
| Pittsburg | Zone 6a: -10°F to -5°F |
| Pittsfield | Zone 5b: -15°F to -10°F |
| Plainfield | Zone 5a: -20°F to -15°F |
| Plainville | Zone 5b: -15°F to -10°F |
| Plano | Zone 5a: -20°F to -15°F |
| Plato Center | Zone 5a: -20°F to -15°F |
| Plattville | Zone 5a: -20°F to -15°F |
| Pleasant Hill | Zone 5b: -15°F to -10°F |
| Pleasant Plains | Zone 5b: -15°F to -10°F |
| Plum Hill | Zone 6a: -10°F to -5°F |
| Plymouth | Zone 5a: -20°F to -15°F |
| Pocahontas | Zone 6a: -10°F to -5°F |
| Polo | Zone 4b: -25°F to -20°F |
| Pomona | Zone 6a: -10°F to -5°F |
| Pontiac | Zone 5a: -20°F to -15°F |
| Pontoon Beach | Zone 6a: -10°F to -5°F |
| Pontoosuc | Zone 5a: -20°F to -15°F |
| Poplar Grove | Zone 5a: -20°F to -15°F |
| Port Barrington | Zone 5a: -20°F to -15°F |
| Port Byron | Zone 5a: -20°F to -15°F |
| Portland | Zone 5a: -20°F to -15°F |
| Posen | Zone 5b: -15°F to -10°F |
| Potomac | Zone 5b: -15°F to -10°F |
| Prairie City | Zone 5a: -20°F to -15°F |
| Prairie du Rocher | Zone 6a: -10°F to -5°F |
| Prairie Grove | Zone 5a: -20°F to -15°F |
| Preemption | Zone 5a: -20°F to -15°F |
| Preston Heights | Zone 5a: -20°F to -15°F |
| Princeton | Zone 5a: -20°F to -15°F |
| Princeville | Zone 5a: -20°F to -15°F |
| Prophetstown | Zone 5a: -20°F to -15°F |
| Prospect Heights | Zone 5a: -20°F to -15°F |
| Pulaski | Zone 6b: -5°F to 0°F |
| Putnam | Zone 5a: -20°F to -15°F |
| Quad City International Airport | Zone 5a: -20°F to -15°F |
| Quincy | Zone 5b: -15°F to -10°F |
| Radom | Zone 6a: -10°F to -5°F |
| Raleigh | Zone 6a: -10°F to -5°F |
| Ramsey | Zone 5b: -15°F to -10°F |
| Randolph | Zone 5a: -20°F to -15°F |
| Rankin | Zone 5b: -15°F to -10°F |
| Ransom | Zone 5a: -20°F to -15°F |
| Rantoul | Zone 5b: -15°F to -10°F |
| Rapids City | Zone 5a: -20°F to -15°F |
| Raritan | Zone 5a: -20°F to -15°F |
| Raymond | Zone 5b: -15°F to -10°F |
| Reading | Zone 5a: -20°F to -15°F |
| Red Bud | Zone 6a: -10°F to -5°F |
| Reddick | Zone 5a: -20°F to -15°F |
| Redmon | Zone 5b: -15°F to -10°F |
| Renault | Zone 6a: -10°F to -5°F |
| Rentchler | Zone 6a: -10°F to -5°F |
| Reynolds | Zone 5a: -20°F to -15°F |
| Richmond | Zone 5a: -20°F to -15°F |
| Richton Park | Zone 5b: -15°F to -10°F |
| Richview | Zone 6a: -10°F to -5°F |
| Ridge Farm | Zone 5b: -15°F to -10°F |
| Ridgway | Zone 6a: -10°F to -5°F |
| Ridott | Zone 4b: -25°F to -20°F |
| Riley | Zone 5a: -20°F to -15°F |
| Rinard | Zone 5b: -15°F to -10°F |
| Ringwood | Zone 5a: -20°F to -15°F |
| Rio | Zone 5a: -20°F to -15°F |
| Ripley | Zone 5b: -15°F to -10°F |
| River Forest | Zone 5b: -15°F to -10°F |
| River Grove | Zone 5b: -15°F to -10°F |
| Riverdale | Zone 5b: -15°F to -10°F |
| Riverside | Zone 5b: -15°F to -10°F |
| Riverton | Zone 5b: -15°F to -10°F |
| Riverwoods | Zone 5a: -20°F to -15°F |
| Roanoke | Zone 5a: -20°F to -15°F |
| Robbins | Zone 5b: -15°F to -10°F |
| Roberts | Zone 5a: -20°F to -15°F |
| Robinson | Zone 5b: -15°F to -10°F |
| Rochelle | Zone 5a: -20°F to -15°F |
| Rochester | Zone 5b: -15°F to -10°F |
| Rock City | Zone 4b: -25°F to -20°F |
| Rock Falls | Zone 5a: -20°F to -15°F |
| Rock Grove | Zone 4b: -25°F to -20°F |
| Rock Island | Zone 5a: -20°F to -15°F |
| Rock Island Arsenal | Zone 5a: -20°F to -15°F |
| Rockbridge | Zone 5b: -15°F to -10°F |
| Rockdale | Zone 5a: -20°F to -15°F |
| Rockford | Zone 4b: -25°F to -20°F |
| Rockport | Zone 5b: -15°F to -10°F |
| Rockton | Zone 5a: -20°F to -15°F |
| Rockwood | Zone 6a: -10°F to -5°F |
| Rolling Meadows | Zone 5a: -20°F to -15°F |
| Rome | Zone 5a: -20°F to -15°F |
| Romeoville | Zone 5a: -20°F to -15°F |
| Roodhouse | Zone 5b: -15°F to -10°F |
| Rooks Creek | Zone 5a: -20°F to -15°F |
| Rosamond | Zone 5b: -15°F to -10°F |
| Roscoe | Zone 5a: -20°F to -15°F |
| Rose Hill | Zone 5b: -15°F to -10°F |
| Roselle | Zone 5a: -20°F to -15°F |
| Rosemont | Zone 5b: -15°F to -10°F |
| Roseville | Zone 5a: -20°F to -15°F |
| Rosewood Heights | Zone 6a: -10°F to -5°F |
| Rosiclare | Zone 6b: -5°F to 0°F |
| Rossville | Zone 5b: -15°F to -10°F |
| Round Lake | Zone 5a: -20°F to -15°F |
| Round Lake Beach | Zone 5a: -20°F to -15°F |
| Round Lake Heights | Zone 5a: -20°F to -15°F |
| Round Lake Park | Zone 5a: -20°F to -15°F |
| Roxana | Zone 6a: -10°F to -5°F |
| Royal | Zone 5b: -15°F to -10°F |
| Royal Lakes | Zone 5b: -15°F to -10°F |
| Royalton | Zone 6a: -10°F to -5°F |
| Ruma | Zone 6a: -10°F to -5°F |
| Rushville | Zone 5a: -20°F to -15°F |
| Russell | Zone 5a: -20°F to -15°F |
| Russellville | Zone 6a: -10°F to -5°F |
| Rutland | Zone 5a: -20°F to -15°F |
| Sadorus | Zone 5b: -15°F to -10°F |
| Sailor Springs | Zone 5b: -15°F to -10°F |
| Saint Anne | Zone 5a: -20°F to -15°F |
| Saint Augustine | Zone 5a: -20°F to -15°F |
| Saint Charles | Zone 5a: -20°F to -15°F |
| Saint David | Zone 5a: -20°F to -15°F |
| Saint Elmo | Zone 5b: -15°F to -10°F |
| Saint Francisville | Zone 6a: -10°F to -5°F |
| Saint Jacob | Zone 6a: -10°F to -5°F |
| Saint Johns | Zone 6a: -10°F to -5°F |
| Saint Joseph | Zone 5b: -15°F to -10°F |
| Saint Libory | Zone 6a: -10°F to -5°F |
| Saint Peter | Zone 5b: -15°F to -10°F |
| Sainte Marie | Zone 5b: -15°F to -10°F |
| Salem | Zone 6a: -10°F to -5°F |
| Sammons Point | Zone 5a: -20°F to -15°F |
| San Jose | Zone 5a: -20°F to -15°F |
| Sandoval | Zone 6a: -10°F to -5°F |
| Sandwich | Zone 5a: -20°F to -15°F |
| Sauget | Zone 6a: -10°F to -5°F |
| Sauk Village | Zone 5b: -15°F to -10°F |
| Saunemin | Zone 5a: -20°F to -15°F |
| Savanna | Zone 5a: -20°F to -15°F |
| Savoy | Zone 5b: -15°F to -10°F |
| Sawyerville | Zone 5b: -15°F to -10°F |
| Saybrook | Zone 5a: -20°F to -15°F |
| Scales Mound | Zone 5a: -20°F to -15°F |
| Schaumburg | Zone 5a: -20°F to -15°F |
| Scheller | Zone 6a: -10°F to -5°F |
| Schiller Park | Zone 5b: -15°F to -10°F |
| Schram City | Zone 5b: -15°F to -10°F |
| Sciota | Zone 5a: -20°F to -15°F |
| Scioto Mills | Zone 5a: -20°F to -15°F |
| Scott AFB | Zone 6a: -10°F to -5°F |
| Scottville | Zone 5b: -15°F to -10°F |
| Seaton | Zone 5a: -20°F to -15°F |
| Seatonville | Zone 5a: -20°F to -15°F |
| Secor | Zone 5a: -20°F to -15°F |
| Seneca | Zone 5a: -20°F to -15°F |
| Serena | Zone 5a: -20°F to -15°F |
| Sesser | Zone 6a: -10°F to -5°F |
| Seward | Zone 4b: -25°F to -20°F |
| Seymour | Zone 5b: -15°F to -10°F |
| Shabbona | Zone 5a: -20°F to -15°F |
| Shannon | Zone 4b: -25°F to -20°F |
| Shattuc | Zone 6a: -10°F to -5°F |
| Shawneetown | Zone 6b: -5°F to 0°F |
| Sheffield | Zone 5a: -20°F to -15°F |
| Shelbyville | Zone 5b: -15°F to -10°F |
| Sheldon | Zone 5a: -20°F to -15°F |
| Sheridan | Zone 5a: -20°F to -15°F |
| Sherman | Zone 5b: -15°F to -10°F |
| Sherrard | Zone 5a: -20°F to -15°F |
| Shiloh | Zone 6a: -10°F to -5°F |
| Shipman | Zone 5b: -15°F to -10°F |
| Shirland | Zone 5a: -20°F to -15°F |
| Shirley | Zone 5a: -20°F to -15°F |
| Shobonier | Zone 5b: -15°F to -10°F |
| Shorewood | Zone 5a: -20°F to -15°F |
| Shumway | Zone 5b: -15°F to -10°F |
| Sibley | Zone 5a: -20°F to -15°F |
| Sidell | Zone 5b: -15°F to -10°F |
| Sidney | Zone 5b: -15°F to -10°F |
| Sigel | Zone 5b: -15°F to -10°F |
| Silvis | Zone 5a: -20°F to -15°F |
| Simpson | Zone 6a: -10°F to -5°F |
| Sims | Zone 5b: -15°F to -10°F |
| Skokie | Zone 5b: -15°F to -10°F |
| Sleepy Hollow | Zone 5a: -20°F to -15°F |
| Smithboro | Zone 6a: -10°F to -5°F |
| Smithfield | Zone 5a: -20°F to -15°F |
| Smithshire | Zone 5a: -20°F to -15°F |
| Smithton | Zone 6a: -10°F to -5°F |
| Solon Mills | Zone 5a: -20°F to -15°F |
| Somonauk | Zone 5a: -20°F to -15°F |
| Sorento | Zone 5b: -15°F to -10°F |
| South Barrington | Zone 5a: -20°F to -15°F |
| South Beloit | Zone 5a: -20°F to -15°F |
| South Chicago Heights | Zone 5b: -15°F to -10°F |
| South Elgin | Zone 5a: -20°F to -15°F |
| South Holland | Zone 5b: -15°F to -10°F |
| South Jacksonville | Zone 5b: -15°F to -10°F |
| South Pekin | Zone 5a: -20°F to -15°F |
| South Roxana | Zone 6a: -10°F to -5°F |
| South Wilmington | Zone 5a: -20°F to -15°F |
| Southern View | Zone 5b: -15°F to -10°F |
| Sparland | Zone 5a: -20°F to -15°F |
| Sparta | Zone 6a: -10°F to -5°F |
| Spaulding | Zone 5b: -15°F to -10°F |
| Speer | Zone 5a: -20°F to -15°F |
| Spillertown | Zone 6a: -10°F to -5°F |
| Spring Bay | Zone 5a: -20°F to -15°F |
| Spring Grove | Zone 5a: -20°F to -15°F |
| Spring Valley | Zone 5a: -20°F to -15°F |
| Springerton | Zone 6a: -10°F to -5°F |
| Springfield | Zone 5b: -15°F to -10°F |
| Standard | Zone 5a: -20°F to -15°F |
| Standard City | Zone 5b: -15°F to -10°F |
| Stanford | Zone 5a: -20°F to -15°F |
| Staunton | Zone 5b: -15°F to -10°F |
| Steeleville | Zone 6a: -10°F to -5°F |
| Steger | Zone 5b: -15°F to -10°F |
| Sterling | Zone 5a: -20°F to -15°F |
| Sterling/Rock Falls | Zone 5a: -20°F to -15°F |
| Steward | Zone 5a: -20°F to -15°F |
| Stewardson | Zone 5b: -15°F to -10°F |
| Stickney | Zone 5b: -15°F to -10°F |
| Stillman Valley | Zone 4b: -25°F to -20°F |
| Stockland | Zone 5a: -20°F to -15°F |
| Stockton | Zone 5a: -20°F to -15°F |
| Stone Park | Zone 5b: -15°F to -10°F |
| Stonefort | Zone 6a: -10°F to -5°F |
| Stonington | Zone 5b: -15°F to -10°F |
| Stoy | Zone 5b: -15°F to -10°F |
| Strasburg | Zone 5b: -15°F to -10°F |
| Strawn | Zone 5a: -20°F to -15°F |
| Streamwood | Zone 5a: -20°F to -15°F |
| Streator | Zone 5a: -20°F to -15°F |
| Stronghurst | Zone 5a: -20°F to -15°F |
| Sublette | Zone 5a: -20°F to -15°F |
| Sugar Grove | Zone 5a: -20°F to -15°F |
| Sullivan | Zone 5b: -15°F to -10°F |
| Summerfield | Zone 6a: -10°F to -5°F |
| Summit | Zone 5b: -15°F to -10°F |
| Summit Argo | Zone 5b: -15°F to -10°F |
| Sumner | Zone 6a: -10°F to -5°F |
| Sun River Terrace | Zone 5a: -20°F to -15°F |
| Sunbury | Zone 5a: -20°F to -15°F |
| Sunnyside | Zone 5a: -20°F to -15°F |
| Sutter | Zone 5a: -20°F to -15°F |
| Swansea | Zone 6a: -10°F to -5°F |
| Sycamore | Zone 5a: -20°F to -15°F |
| Symerton | Zone 5a: -20°F to -15°F |
| Table Grove | Zone 5a: -20°F to -15°F |
| Tallula | Zone 5b: -15°F to -10°F |
| Tamaroa | Zone 6a: -10°F to -5°F |
| Tamms | Zone 6b: -5°F to 0°F |
| Tampico | Zone 5a: -20°F to -15°F |
| Taylor Ridge | Zone 5a: -20°F to -15°F |
| Taylor Springs | Zone 5b: -15°F to -10°F |
| Taylorville | Zone 5b: -15°F to -10°F |
| Techny | Zone 5b: -15°F to -10°F |
| Tennessee | Zone 5a: -20°F to -15°F |
| Teutopolis | Zone 5b: -15°F to -10°F |
| Texico | Zone 5b: -15°F to -10°F |
| Thawville | Zone 5a: -20°F to -15°F |
| Thayer | Zone 5b: -15°F to -10°F |
| Thebes | Zone 6b: -5°F to 0°F |
| Third Lake | Zone 5a: -20°F to -15°F |
| Thomasboro | Zone 5b: -15°F to -10°F |
| Thompsonville | Zone 6a: -10°F to -5°F |
| Thomson | Zone 5a: -20°F to -15°F |
| Thornton | Zone 5b: -15°F to -10°F |
| Tilden | Zone 6a: -10°F to -5°F |
| Tilton | Zone 5b: -15°F to -10°F |
| Timberlane | Zone 5a: -20°F to -15°F |
| Time | Zone 5b: -15°F to -10°F |
| Timewell | Zone 5b: -15°F to -10°F |
| Tinley Park | Zone 5b: -15°F to -10°F |
| Tiskilwa | Zone 5a: -20°F to -15°F |
| Todds Point | Zone 5b: -15°F to -10°F |
| Toledo | Zone 5b: -15°F to -10°F |
| Tolono | Zone 5b: -15°F to -10°F |
| Toluca | Zone 5a: -20°F to -15°F |
| Tonica | Zone 5a: -20°F to -15°F |
| Tonti | Zone 6a: -10°F to -5°F |
| Topeka | Zone 5a: -20°F to -15°F |
| Toulon | Zone 5a: -20°F to -15°F |
| Tovey | Zone 5b: -15°F to -10°F |
| Towanda | Zone 5a: -20°F to -15°F |
| Tower Hill | Zone 5b: -15°F to -10°F |
| Tower Lake | Zone 5a: -20°F to -15°F |
| Tremont | Zone 5a: -20°F to -15°F |
| Trenton | Zone 6a: -10°F to -5°F |
| Trilla | Zone 5b: -15°F to -10°F |
| Triumph | Zone 5a: -20°F to -15°F |
| Trivoli | Zone 5a: -20°F to -15°F |
| Trout Valley | Zone 5a: -20°F to -15°F |
| Troy | Zone 6a: -10°F to -5°F |
| Troy Grove | Zone 5a: -20°F to -15°F |
| Tunnel Hill | Zone 6a: -10°F to -5°F |
| Tuscola | Zone 5b: -15°F to -10°F |
| Twin Grove | Zone 5a: -20°F to -15°F |
| Ullin | Zone 6b: -5°F to 0°F |
| Union | Zone 5a: -20°F to -15°F |
| Union Grove | Zone 5a: -20°F to -15°F |
| Union Hill | Zone 5a: -20°F to -15°F |
| Unity | Zone 6b: -5°F to 0°F |
| University Park | Zone 5b: -15°F to -10°F |
| Upper Alton | Zone 6a: -10°F to -5°F |
| Urbana | Zone 5b: -15°F to -10°F |
| Ursa | Zone 5a: -20°F to -15°F |
| Ustick | Zone 5a: -20°F to -15°F |
| Utica | Zone 5a: -20°F to -15°F |
| Valier | Zone 6a: -10°F to -5°F |
| Valley City | Zone 5b: -15°F to -10°F |
| Valmeyer | Zone 6a: -10°F to -5°F |
| Van Orin | Zone 5a: -20°F to -15°F |
| Vandalia | Zone 5b: -15°F to -10°F |
| Varna | Zone 5a: -20°F to -15°F |
| Venedy | Zone 6a: -10°F to -5°F |
| Venetian Village | Zone 5a: -20°F to -15°F |
| Venice | Zone 6a: -10°F to -5°F |
| Vergennes | Zone 6a: -10°F to -5°F |
| Vermilion | Zone 5b: -15°F to -10°F |
| Vermont | Zone 5a: -20°F to -15°F |
| Vernon | Zone 6a: -10°F to -5°F |
| Vernon Hills | Zone 5a: -20°F to -15°F |
| Verona | Zone 5a: -20°F to -15°F |
| Versailles | Zone 5b: -15°F to -10°F |
| Victoria | Zone 5a: -20°F to -15°F |
| Vienna | Zone 6a: -10°F to -5°F |
| Villa Grove | Zone 5b: -15°F to -10°F |
| Villa Park | Zone 5a: -20°F to -15°F |
| Villa Ridge | Zone 6b: -5°F to 0°F |
| Village of Campton Hills | Zone 5a: -20°F to -15°F |
| Viola | Zone 5a: -20°F to -15°F |
| Virden | Zone 5b: -15°F to -10°F |
| Virgil | Zone 5a: -20°F to -15°F |
| Virginia | Zone 5b: -15°F to -10°F |
| Volo | Zone 5a: -20°F to -15°F |
| Wadsworth | Zone 5a: -20°F to -15°F |
| Waggoner | Zone 5b: -15°F to -10°F |
| Waldo | Zone 5a: -20°F to -15°F |
| Walnut | Zone 5a: -20°F to -15°F |
| Walnut Hill | Zone 6a: -10°F to -5°F |
| Walsh | Zone 6a: -10°F to -5°F |
| Walshville | Zone 5b: -15°F to -10°F |
| Waltonville | Zone 6a: -10°F to -5°F |
| Wamac | Zone 6a: -10°F to -5°F |
| Wapella | Zone 5a: -20°F to -15°F |
| Warren | Zone 5a: -20°F to -15°F |
| Warrensburg | Zone 5b: -15°F to -10°F |
| Warrenville | Zone 5a: -20°F to -15°F |
| Warsaw | Zone 5a: -20°F to -15°F |
| Wasco | Zone 5a: -20°F to -15°F |
| Washburn | Zone 5a: -20°F to -15°F |
| Washington | Zone 5a: -20°F to -15°F |
| Washington Park | Zone 6a: -10°F to -5°F |
| Wataga | Zone 5a: -20°F to -15°F |
| Waterloo | Zone 6a: -10°F to -5°F |
| Waterman | Zone 5a: -20°F to -15°F |
| Watseka | Zone 5a: -20°F to -15°F |
| Watson | Zone 5b: -15°F to -10°F |
| Wauconda | Zone 5a: -20°F to -15°F |
| Waukegan | Zone 5a: -20°F to -15°F |
| Waverly | Zone 5b: -15°F to -10°F |
| Wayne | Zone 5a: -20°F to -15°F |
| Wayne City | Zone 5b: -15°F to -10°F |
| Waynesville | Zone 5a: -20°F to -15°F |
| Wedron | Zone 5a: -20°F to -15°F |
| Weldon | Zone 5b: -15°F to -10°F |
| Wellington | Zone 5b: -15°F to -10°F |
| Wenona | Zone 5a: -20°F to -15°F |
| Wenonah | Zone 5b: -15°F to -10°F |
| West Brooklyn | Zone 5a: -20°F to -15°F |
| West Chicago | Zone 5a: -20°F to -15°F |
| West City | Zone 6a: -10°F to -5°F |
| West Dundee | Zone 5a: -20°F to -15°F |
| West Frankfort | Zone 6a: -10°F to -5°F |
| West Jersey | Zone 5a: -20°F to -15°F |
| West Liberty | Zone 5b: -15°F to -10°F |
| West Peoria | Zone 5a: -20°F to -15°F |
| West Point | Zone 5a: -20°F to -15°F |
| West Salem | Zone 6a: -10°F to -5°F |
| West Union | Zone 5b: -15°F to -10°F |
| West York | Zone 5b: -15°F to -10°F |
| Westchester | Zone 5b: -15°F to -10°F |
| Western Springs | Zone 5b: -15°F to -10°F |
| Westervelt | Zone 5b: -15°F to -10°F |
| Westfield | Zone 5b: -15°F to -10°F |
| Westmont | Zone 5b: -15°F to -10°F |
| Westville | Zone 5a: -20°F to -15°F |
| Wheaton | Zone 5a: -20°F to -15°F |
| Wheeler | Zone 5b: -15°F to -10°F |
| Wheeling | Zone 5a: -20°F to -15°F |
| White Ash | Zone 6a: -10°F to -5°F |
| White City | Zone 5b: -15°F to -10°F |
| White Hall | Zone 5b: -15°F to -10°F |
| White Heath | Zone 5b: -15°F to -10°F |
| White Rock | Zone 4b: -25°F to -20°F |
| Whittington | Zone 6a: -10°F to -5°F |
| Williamsfield | Zone 5a: -20°F to -15°F |
| Williamson | Zone 5b: -15°F to -10°F |
| Williamsville | Zone 5b: -15°F to -10°F |
| Willisville | Zone 6a: -10°F to -5°F |
| Willow Hill | Zone 5b: -15°F to -10°F |
| Willow Springs | Zone 5b: -15°F to -10°F |
| Willowbrook | Zone 5b: -15°F to -10°F |
| Wilmette | Zone 5b: -15°F to -10°F |
| Wilmington | Zone 5a: -20°F to -15°F |
| Wilsonville | Zone 5b: -15°F to -10°F |
| Wilton | Zone 5b: -15°F to -10°F |
| Winchester | Zone 5b: -15°F to -10°F |
| Windsor | Zone 5b: -15°F to -10°F |
| Winfield | Zone 5a: -20°F to -15°F |
| Winnebago | Zone 4b: -25°F to -20°F |
| Winnetka | Zone 5b: -15°F to -10°F |
| Winslow | Zone 4b: -25°F to -20°F |
| Winthrop Harbor | Zone 5a: -20°F to -15°F |
| Witt | Zone 5b: -15°F to -10°F |
| Wolf Lake | Zone 6a: -10°F to -5°F |
| Wonder Lake | Zone 5a: -20°F to -15°F |
| Wood Dale | Zone 5a: -20°F to -15°F |
| Wood River | Zone 6a: -10°F to -5°F |
| Woodhull | Zone 5a: -20°F to -15°F |
| Woodland | Zone 5a: -20°F to -15°F |
| Woodlawn | Zone 6a: -10°F to -5°F |
| Woodridge | Zone 5b: -15°F to -10°F |
| Woodside | Zone 5b: -15°F to -10°F |
| Woodson | Zone 5b: -15°F to -10°F |
| Woodstock | Zone 5a: -20°F to -15°F |
| Woosung | Zone 4b: -25°F to -20°F |
| Worden | Zone 6a: -10°F to -5°F |
| Worth | Zone 5b: -15°F to -10°F |
| Wrights | Zone 5b: -15°F to -10°F |
| Wyanet | Zone 5a: -20°F to -15°F |
| Wyoming | Zone 5a: -20°F to -15°F |
| Xenia | Zone 5b: -15°F to -10°F |
| Yale | Zone 5b: -15°F to -10°F |
| Yates City | Zone 5a: -20°F to -15°F |
| York Center | Zone 5b: -15°F to -10°F |
| Yorkville | Zone 5a: -20°F to -15°F |
| Zanesville | Zone 5b: -15°F to -10°F |
| Zeigler | Zone 6a: -10°F to -5°F |
| Zion | Zone 5a: -20°F to -15°F |