Colorado USDA Hardiness Zone Map - 1990
View the new 2023 Colorado Hardiness Zone Map
| Zone 2b -45°F to -40°F | Zone 3a -40°F to -35°F | Zone 3b -35°F to -30°F | Zone 4a -30°F to -25°F | 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 | Zone 7a 0°F to 5°F |
Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the state of Colorado which ranges from USDA Zone 2b to USDA Zone 7a.
1990 USDA Hardiness Zone Maps for Neighboring States and Provinces
Related Colorado Maps:
List of 1990 Hardiness Zones for Cities in Colorado
| Location | Hardiness Zone |
|---|---|
| Acres Green | Zone 5a: -20°F to -15°F |
| Agate | Zone 5a: -20°F to -15°F |
| Aguilar | Zone 5b: -15°F to -10°F |
| Air Force Academy | Zone 5a: -20°F to -15°F |
| Akron | Zone 5b: -15°F to -10°F |
| Alamosa | Zone 4b: -25°F to -20°F |
| Alamosa East | Zone 4b: -25°F to -20°F |
| Allenspark | Zone 4b: -25°F to -20°F |
| Alma | Zone 4a: -30°F to -25°F |
| Almont | Zone 3b: -35°F to -30°F |
| Alpine | Zone 5b: -15°F to -10°F |
| Altona | Zone 5b: -15°F to -10°F |
| Amherst | Zone 5a: -20°F to -15°F |
| Antero Junction | Zone 4b: -25°F to -20°F |
| Anton | Zone 5a: -20°F to -15°F |
| Antonito | Zone 4b: -25°F to -20°F |
| Applewood | Zone 5a: -20°F to -15°F |
| Arapahoe | Zone 5b: -15°F to -10°F |
| Arboles | Zone 5b: -15°F to -10°F |
| Aristocrat Ranchettes | Zone 5a: -20°F to -15°F |
| Arlington | Zone 5b: -15°F to -10°F |
| Arriba | Zone 5a: -20°F to -15°F |
| Arvada | Zone 5b: -15°F to -10°F |
| Aspen | Zone 4a: -30°F to -25°F |
| Aspen Park | Zone 5a: -20°F to -15°F |
| Atwood | Zone 5a: -20°F to -15°F |
| Ault | Zone 5b: -15°F to -10°F |
| Aurora | Zone 5b: -15°F to -10°F |
| Austin | Zone 6a: -10°F to -5°F |
| Avon | Zone 4b: -25°F to -20°F |
| Avondale | Zone 5b: -15°F to -10°F |
| Axial | Zone 4a: -30°F to -25°F |
| Bailey | Zone 4b: -25°F to -20°F |
| Bark Ranch | Zone 5a: -20°F to -15°F |
| Basalt | Zone 4b: -25°F to -20°F |
| Battlement Mesa | Zone 6a: -10°F to -5°F |
| Bayfield | Zone 5b: -15°F to -10°F |
| Beaver Creek | Zone 4b: -25°F to -20°F |
| Bedrock | Zone 6a: -10°F to -5°F |
| Bellvue | Zone 5b: -15°F to -10°F |
| Bennett | Zone 5b: -15°F to -10°F |
| Berkley | Zone 5b: -15°F to -10°F |
| Berthoud | Zone 5a: -20°F to -15°F |
| Bethune | Zone 5b: -15°F to -10°F |
| Beulah | Zone 5b: -15°F to -10°F |
| Beulah Valley | Zone 5b: -15°F to -10°F |
| Black Forest | Zone 5a: -20°F to -15°F |
| Black Hawk | Zone 5a: -20°F to -15°F |
| Blanca | Zone 4b: -25°F to -20°F |
| Blende | Zone 5b: -15°F to -10°F |
| Blue River | Zone 4b: -25°F to -20°F |
| Bonanza | Zone 4b: -25°F to -20°F |
| Boncarbo | Zone 5b: -15°F to -10°F |
| Bond | Zone 4b: -25°F to -20°F |
| Boone | Zone 5b: -15°F to -10°F |
| Boulder | Zone 5a: -20°F to -15°F |
| Bow Mar | Zone 5a: -20°F to -15°F |
| Boyero | Zone 5a: -20°F to -15°F |
| Brandon | Zone 5b: -15°F to -10°F |
| Branson | Zone 5b: -15°F to -10°F |
| Breckenridge | Zone 4b: -25°F to -20°F |
| Breckenridge Ski Area | Zone 4b: -25°F to -20°F |
| Briggsdale | Zone 5a: -20°F to -15°F |
| Brighton | Zone 5b: -15°F to -10°F |
| Brookside | Zone 6a: -10°F to -5°F |
| Broomfield | Zone 5b: -15°F to -10°F |
| Brush | Zone 5b: -15°F to -10°F |
| Buena Vista | Zone 5a: -20°F to -15°F |
| Buffalo Creek | Zone 4b: -25°F to -20°F |
| Burlington | Zone 5b: -15°F to -10°F |
| Burns | Zone 4b: -25°F to -20°F |
| Byers | Zone 5b: -15°F to -10°F |
| Cahone | Zone 5b: -15°F to -10°F |
| Calhan | Zone 5a: -20°F to -15°F |
| Campion | Zone 5a: -20°F to -15°F |
| Campo | Zone 6a: -10°F to -5°F |
| Canon City | Zone 6a: -10°F to -5°F |
| Capulin | Zone 4b: -25°F to -20°F |
| Carbondale | Zone 5a: -20°F to -15°F |
| Carr | Zone 5a: -20°F to -15°F |
| Carriage Club | Zone 4b: -25°F to -20°F |
| Cascade | Zone 5a: -20°F to -15°F |
| Cascade-Chipita Park | Zone 4b: -25°F to -20°F |
| Castle Pines | Zone 4b: -25°F to -20°F |
| Castle Pines North | Zone 4b: -25°F to -20°F |
| Castle Rock | Zone 4b: -25°F to -20°F |
| Castlewood | Zone 5a: -20°F to -15°F |
| Cathedral | Zone 4a: -30°F to -25°F |
| Catherine | Zone 5a: -20°F to -15°F |
| Cattle Creek | Zone 5b: -15°F to -10°F |
| Cedaredge | Zone 6a: -10°F to -5°F |
| Cedarwood | Zone 5b: -15°F to -10°F |
| Centennial | Zone 5a: -20°F to -15°F |
| Center | Zone 4a: -30°F to -25°F |
| Central City | Zone 5a: -20°F to -15°F |
| Centro | Zone 4b: -25°F to -20°F |
| Chacra | Zone 6a: -10°F to -5°F |
| Chama | Zone 4b: -25°F to -20°F |
| Cheraw | Zone 5b: -15°F to -10°F |
| Cherry Hills Village | Zone 5a: -20°F to -15°F |
| Cheyenne Wells | Zone 5b: -15°F to -10°F |
| Chimney Rock | Zone 5a: -20°F to -15°F |
| Chivington | Zone 5b: -15°F to -10°F |
| Chromo | Zone 4b: -25°F to -20°F |
| Cimarron | Zone 4b: -25°F to -20°F |
| Cimarron Hills | Zone 5b: -15°F to -10°F |
| Clark | Zone 4a: -30°F to -25°F |
| Clifton | Zone 7a: 0°F to 5°F |
| Climax | Zone 4b: -25°F to -20°F |
| Coal Creek | Zone 6a: -10°F to -5°F |
| Coaldale | Zone 4b: -25°F to -20°F |
| Coalmont | Zone 3b: -35°F to -30°F |
| Cokedale | Zone 5b: -15°F to -10°F |
| Collbran | Zone 6a: -10°F to -5°F |
| Colona | Zone 5b: -15°F to -10°F |
| Colorado City | Zone 5b: -15°F to -10°F |
| Colorado Springs | Zone 5a: -20°F to -15°F |
| Columbine | Zone 5a: -20°F to -15°F |
| Columbine Valley | Zone 5a: -20°F to -15°F |
| Commerce City | Zone 5b: -15°F to -10°F |
| Como | Zone 4a: -30°F to -25°F |
| Conejos | Zone 4b: -25°F to -20°F |
| Conifer | Zone 4b: -25°F to -20°F |
| Cope | Zone 5a: -20°F to -15°F |
| Copper Mountain | Zone 4b: -25°F to -20°F |
| Copper Mountain Resort | Zone 4b: -25°F to -20°F |
| Cortez | Zone 5b: -15°F to -10°F |
| Cory | Zone 6a: -10°F to -5°F |
| Cotopaxi | Zone 4b: -25°F to -20°F |
| Cottonwood | Zone 5a: -20°F to -15°F |
| Cowdrey | Zone 3b: -35°F to -30°F |
| Craig | Zone 4b: -25°F to -20°F |
| Crawford | Zone 4b: -25°F to -20°F |
| Creede | Zone 4a: -30°F to -25°F |
| Crested Butte | Zone 3a: -40°F to -35°F |
| Crested Butte Mountain Resort | Zone 3a: -40°F to -35°F |
| Crestone | Zone 4b: -25°F to -20°F |
| Cripple Creek | Zone 5a: -20°F to -15°F |
| Crisman | Zone 5a: -20°F to -15°F |
| Crook | Zone 5a: -20°F to -15°F |
| Crowley | Zone 5b: -15°F to -10°F |
| Cuchara | Zone 5b: -15°F to -10°F |
| Dacono | Zone 5a: -20°F to -15°F |
| De Beque | Zone 6a: -10°F to -5°F |
| Deckers | Zone 4b: -25°F to -20°F |
| Deer Trail | Zone 5b: -15°F to -10°F |
| Del Norte | Zone 4b: -25°F to -20°F |
| Delhi | Zone 5b: -15°F to -10°F |
| Delta | Zone 6a: -10°F to -5°F |
| Denver | Zone 5b: -15°F to -10°F |
| Denver Centennial Arpt | Zone 5a: -20°F to -15°F |
| Denver International Airport | Zone 5b: -15°F to -10°F |
| Derby | Zone 5b: -15°F to -10°F |
| Dillon | Zone 4b: -25°F to -20°F |
| Dinosaur | Zone 5b: -15°F to -10°F |
| Divide | Zone 4b: -25°F to -20°F |
| Dolores | Zone 5b: -15°F to -10°F |
| Dotsero | Zone 5a: -20°F to -15°F |
| Dove Creek | Zone 5b: -15°F to -10°F |
| Dove Valley | Zone 5a: -20°F to -15°F |
| Downieville-Lawson-Dumont | Zone 5a: -20°F to -15°F |
| Doyleville | Zone 4a: -30°F to -25°F |
| Drake | Zone 5a: -20°F to -15°F |
| Dumont | Zone 5a: -20°F to -15°F |
| Dupont | Zone 5b: -15°F to -10°F |
| Durango | Zone 5b: -15°F to -10°F |
| Eads | Zone 5b: -15°F to -10°F |
| Eagle | Zone 4b: -25°F to -20°F |
| East Pleasant View | Zone 5a: -20°F to -15°F |
| Eastlake | Zone 5b: -15°F to -10°F |
| Eaton | Zone 5b: -15°F to -10°F |
| Eckert | Zone 6a: -10°F to -5°F |
| Eckley | Zone 5a: -20°F to -15°F |
| Edgewater | Zone 5b: -15°F to -10°F |
| Edler | Zone 6a: -10°F to -5°F |
| Edwards | Zone 4b: -25°F to -20°F |
| Egnar | Zone 5b: -15°F to -10°F |
| El Jebel | Zone 5a: -20°F to -15°F |
| El Moro | Zone 5b: -15°F to -10°F |
| Elbert | Zone 5b: -15°F to -10°F |
| Eldora | Zone 4b: -25°F to -20°F |
| Eldorado Springs | Zone 5a: -20°F to -15°F |
| Elizabeth | Zone 5b: -15°F to -10°F |
| Elk Springs | Zone 4a: -30°F to -25°F |
| Elkdale | Zone 4a: -30°F to -25°F |
| Ellicott | Zone 5b: -15°F to -10°F |
| Empire | Zone 5a: -20°F to -15°F |
| Englewood | Zone 5a: -20°F to -15°F |
| Erie | Zone 5a: -20°F to -15°F |
| Estes Park | Zone 4b: -25°F to -20°F |
| Evans | Zone 5b: -15°F to -10°F |
| Evergreen | Zone 5a: -20°F to -15°F |
| Fairplay | Zone 4a: -30°F to -25°F |
| Federal Heights | Zone 5b: -15°F to -10°F |
| Firestone | Zone 5a: -20°F to -15°F |
| Firstview | Zone 5b: -15°F to -10°F |
| Flagler | Zone 5a: -20°F to -15°F |
| Fleming | Zone 5a: -20°F to -15°F |
| Florence | Zone 6a: -10°F to -5°F |
| Florissant | Zone 4a: -30°F to -25°F |
| Fort Carson | Zone 5b: -15°F to -10°F |
| Fort Collins | Zone 5b: -15°F to -10°F |
| Fort Garland | Zone 4b: -25°F to -20°F |
| Fort Lupton | Zone 5a: -20°F to -15°F |
| Fort Lyon | Zone 5b: -15°F to -10°F |
| Fort Morgan | Zone 5a: -20°F to -15°F |
| Fountain | Zone 5b: -15°F to -10°F |
| Fowler | Zone 5b: -15°F to -10°F |
| Foxfield | Zone 5a: -20°F to -15°F |
| Franktown | Zone 4b: -25°F to -20°F |
| Fraser | Zone 4b: -25°F to -20°F |
| Frederick | Zone 5a: -20°F to -15°F |
| Frisco | Zone 4b: -25°F to -20°F |
| Fruita | Zone 6b: -5°F to 0°F |
| Fruitvale | Zone 7a: 0°F to 5°F |
| Ft. Morgan | Zone 5a: -20°F to -15°F |
| Fulford | Zone 4b: -25°F to -20°F |
| Galeton | Zone 5b: -15°F to -10°F |
| Garcia | Zone 4b: -25°F to -20°F |
| Garden City | Zone 5b: -15°F to -10°F |
| Gardner | Zone 5b: -15°F to -10°F |
| Garfield | Zone 4a: -30°F to -25°F |
| Garo | Zone 3a: -40°F to -35°F |
| Gateway | Zone 6b: -5°F to 0°F |
| Genesee | Zone 5a: -20°F to -15°F |
| Genoa | Zone 5a: -20°F to -15°F |
| Georgetown | Zone 5a: -20°F to -15°F |
| Gerrard | Zone 5b: -15°F to -10°F |
| Gilcrest | Zone 5a: -20°F to -15°F |
| Gill | Zone 5b: -15°F to -10°F |
| Glade Park | Zone 6b: -5°F to 0°F |
| Gleenwood Springs | Zone 5b: -15°F to -10°F |
| Glen Haven | Zone 5a: -20°F to -15°F |
| Glendale | Zone 5b: -15°F to -10°F |
| Glendevey | Zone 4a: -30°F to -25°F |
| Gleneagle | Zone 5a: -20°F to -15°F |
| Glenwood Springs | Zone 5b: -15°F to -10°F |
| Gold Hill | Zone 5a: -20°F to -15°F |
| Golden | Zone 5a: -20°F to -15°F |
| Goldfield | Zone 5a: -20°F to -15°F |
| Granada | Zone 5b: -15°F to -10°F |
| Granby | Zone 4a: -30°F to -25°F |
| Grand Junction | Zone 7a: 0°F to 5°F |
| Grand Lake | Zone 4a: -30°F to -25°F |
| Granite | Zone 4b: -25°F to -20°F |
| Grant | Zone 5a: -20°F to -15°F |
| Great Divide | Zone 4a: -30°F to -25°F |
| Greeley | Zone 5b: -15°F to -10°F |
| Green Mountain Falls | Zone 4b: -25°F to -20°F |
| Greenwood Village | Zone 5a: -20°F to -15°F |
| Greystone | Zone 4b: -25°F to -20°F |
| Grover | Zone 5a: -20°F to -15°F |
| Guffey | Zone 4b: -25°F to -20°F |
| Gulnare | Zone 5b: -15°F to -10°F |
| Gunbarrel | Zone 5b: -15°F to -10°F |
| Gunnison | Zone 4a: -30°F to -25°F |
| Gypsum | Zone 4b: -25°F to -20°F |
| Hamilton | Zone 4a: -30°F to -25°F |
| Hartman | Zone 5b: -15°F to -10°F |
| Hartsel | Zone 3b: -35°F to -30°F |
| Hasty | Zone 5b: -15°F to -10°F |
| Haswell | Zone 5b: -15°F to -10°F |
| Haxtun | Zone 5a: -20°F to -15°F |
| Hayden | Zone 4a: -30°F to -25°F |
| Heeney | Zone 4a: -30°F to -25°F |
| Henderson | Zone 5b: -15°F to -10°F |
| Hereford | Zone 5a: -20°F to -15°F |
| Heritage Hills | Zone 5a: -20°F to -15°F |
| Hesperus | Zone 5b: -15°F to -10°F |
| Hidden Lake | Zone 4b: -25°F to -20°F |
| Highlands Ranch | Zone 4b: -25°F to -20°F |
| Hillrose | Zone 5a: -20°F to -15°F |
| Hillside | Zone 4b: -25°F to -20°F |
| Hoehne | Zone 5b: -15°F to -10°F |
| Holly | Zone 5b: -15°F to -10°F |
| Holyoke | Zone 5a: -20°F to -15°F |
| Homelake | Zone 4a: -30°F to -25°F |
| Hooper | Zone 4b: -25°F to -20°F |
| Hot Sulphur Springs | Zone 4a: -30°F to -25°F |
| Hotchkiss | Zone 5b: -15°F to -10°F |
| Howard | Zone 4b: -25°F to -20°F |
| Hudson | Zone 5b: -15°F to -10°F |
| Hugo | Zone 5a: -20°F to -15°F |
| Hygiene | Zone 5b: -15°F to -10°F |
| Idaho Springs | Zone 5a: -20°F to -15°F |
| Idalia | Zone 5a: -20°F to -15°F |
| Idledale | Zone 5a: -20°F to -15°F |
| Ignacio | Zone 5b: -15°F to -10°F |
| Iliff | Zone 5a: -20°F to -15°F |
| Indian Hills | Zone 5a: -20°F to -15°F |
| Jamestown | Zone 5a: -20°F to -15°F |
| Jansen | Zone 5b: -15°F to -10°F |
| Jaroso | Zone 4b: -25°F to -20°F |
| Jefferson | Zone 4b: -25°F to -20°F |
| Joes | Zone 5a: -20°F to -15°F |
| Johnson Village | Zone 5a: -20°F to -15°F |
| Johnstown | Zone 5a: -20°F to -15°F |
| Julesburg | Zone 5a: -20°F to -15°F |
| Karval | Zone 5a: -20°F to -15°F |
| Keenesburg | Zone 5b: -15°F to -10°F |
| Ken Caryl | Zone 5a: -20°F to -15°F |
| Keota | Zone 5a: -20°F to -15°F |
| Kersey | Zone 5b: -15°F to -10°F |
| Keystone | Zone 5a: -20°F to -15°F |
| Keystone Resort | Zone 5a: -20°F to -15°F |
| Kim | Zone 5b: -15°F to -10°F |
| Kings Canyon | Zone 3b: -35°F to -30°F |
| Kiowa | Zone 5b: -15°F to -10°F |
| Kirk | Zone 5a: -20°F to -15°F |
| Kit Carson | Zone 5a: -20°F to -15°F |
| Kittredge | Zone 5a: -20°F to -15°F |
| Kornman | Zone 5b: -15°F to -10°F |
| Kremmling | Zone 3b: -35°F to -30°F |
| Kutch | Zone 5a: -20°F to -15°F |
| La Garita | Zone 4a: -30°F to -25°F |
| La Jara | Zone 4b: -25°F to -20°F |
| La Junta | Zone 5b: -15°F to -10°F |
| La Junta Gardens | Zone 5b: -15°F to -10°F |
| La Salle | Zone 5b: -15°F to -10°F |
| La Veta | Zone 5b: -15°F to -10°F |
| Lafayette | Zone 5a: -20°F to -15°F |
| Laird | Zone 5a: -20°F to -15°F |
| Lake City | Zone 4a: -30°F to -25°F |
| Lake George | Zone 3b: -35°F to -30°F |
| Lakeside | Zone 5b: -15°F to -10°F |
| Lakewood | Zone 5a: -20°F to -15°F |
| Lamar | Zone 5b: -15°F to -10°F |
| Laporte | Zone 5b: -15°F to -10°F |
| Larkspur | Zone 4b: -25°F to -20°F |
| Las Animas | Zone 5b: -15°F to -10°F |
| Lasalle | Zone 5b: -15°F to -10°F |
| Last Chance | Zone 5b: -15°F to -10°F |
| Lay | Zone 4a: -30°F to -25°F |
| Lazear | Zone 5b: -15°F to -10°F |
| Lazy Acres | Zone 5b: -15°F to -10°F |
| Leadville | Zone 4b: -25°F to -20°F |
| Leadville North | Zone 4b: -25°F to -20°F |
| Lewis | Zone 5b: -15°F to -10°F |
| Leyner | Zone 5a: -20°F to -15°F |
| Limon | Zone 5a: -20°F to -15°F |
| Lincoln Park | Zone 6a: -10°F to -5°F |
| Lindon | Zone 5a: -20°F to -15°F |
| Littleton | Zone 5a: -20°F to -15°F |
| Livermore | Zone 5a: -20°F to -15°F |
| Lochbuie | Zone 5b: -15°F to -10°F |
| Log Lane Village | Zone 5a: -20°F to -15°F |
| Loghill Village | Zone 5b: -15°F to -10°F |
| Loma | Zone 6a: -10°F to -5°F |
| Lone Tree | Zone 5a: -20°F to -15°F |
| Longmont | Zone 5a: -20°F to -15°F |
| Louisville | Zone 5a: -20°F to -15°F |
| Louviers | Zone 4b: -25°F to -20°F |
| Loveland | Zone 5a: -20°F to -15°F |
| Lucerne | Zone 5b: -15°F to -10°F |
| Lycan | Zone 5b: -15°F to -10°F |
| Lynn | Zone 5b: -15°F to -10°F |
| Lyons | Zone 5b: -15°F to -10°F |
| Mack | Zone 6a: -10°F to -5°F |
| Maher | Zone 4b: -25°F to -20°F |
| Manassa | Zone 4b: -25°F to -20°F |
| Mancos | Zone 5b: -15°F to -10°F |
| Manitou Springs | Zone 5a: -20°F to -15°F |
| Manzanola | Zone 5b: -15°F to -10°F |
| Marble | Zone 4a: -30°F to -25°F |
| Marvel | Zone 6a: -10°F to -5°F |
| Masonville | Zone 5a: -20°F to -15°F |
| Massadona | Zone 4b: -25°F to -20°F |
| Masters | Zone 5a: -20°F to -15°F |
| Matheson | Zone 5a: -20°F to -15°F |
| Maybell | Zone 4a: -30°F to -25°F |
| Maysville | Zone 4b: -25°F to -20°F |
| McClave | Zone 5b: -15°F to -10°F |
| McCoy | Zone 4b: -25°F to -20°F |
| Mead | Zone 5a: -20°F to -15°F |
| Meeker | Zone 5a: -20°F to -15°F |
| Meredith | Zone 4b: -25°F to -20°F |
| Meridian | Zone 5a: -20°F to -15°F |
| Merino | Zone 5a: -20°F to -15°F |
| Mesa | Zone 6a: -10°F to -5°F |
| Mesa Verde Natl Park | Zone 6a: -10°F to -5°F |
| Mesita | Zone 4b: -25°F to -20°F |
| Midland | Zone 4b: -25°F to -20°F |
| Milliken | Zone 5a: -20°F to -15°F |
| Mineral Hot Springs | Zone 4b: -25°F to -20°F |
| Minturn | Zone 4b: -25°F to -20°F |
| Model | Zone 5b: -15°F to -10°F |
| Moffat | Zone 4b: -25°F to -20°F |
| Mogote | Zone 4b: -25°F to -20°F |
| Molina | Zone 6a: -10°F to -5°F |
| Monarch | Zone 4a: -30°F to -25°F |
| Monarch Ski And Snowboard Area | Zone 4a: -30°F to -25°F |
| Monte Vista | Zone 4a: -30°F to -25°F |
| Montezuma | Zone 5a: -20°F to -15°F |
| Montrose | Zone 5b: -15°F to -10°F |
| Monument | Zone 4b: -25°F to -20°F |
| Morrison | Zone 5a: -20°F to -15°F |
| Mosca | Zone 4b: -25°F to -20°F |
| Mount Crested Butte | Zone 3a: -40°F to -35°F |
| Mountain Meadows | Zone 5a: -20°F to -15°F |
| Mountain View | Zone 5b: -15°F to -10°F |
| Mountain Village | Zone 5a: -20°F to -15°F |
| Nathrop | Zone 5a: -20°F to -15°F |
| Naturita | Zone 5b: -15°F to -10°F |
| Nederland | Zone 4b: -25°F to -20°F |
| New Castle | Zone 6a: -10°F to -5°F |
| New Raymer | Zone 5a: -20°F to -15°F |
| Niwot | Zone 5b: -15°F to -10°F |
| Norrie | Zone 4b: -25°F to -20°F |
| North La Junta | Zone 5b: -15°F to -10°F |
| North Washington | Zone 5b: -15°F to -10°F |
| Northglenn | Zone 5b: -15°F to -10°F |
| Norwood | Zone 5a: -20°F to -15°F |
| Nucla | Zone 5b: -15°F to -10°F |
| Nunn | Zone 5b: -15°F to -10°F |
| Oak Creek | Zone 4a: -30°F to -25°F |
| Ohio City | Zone 4a: -30°F to -25°F |
| Olathe | Zone 6a: -10°F to -5°F |
| Olney Springs | Zone 5b: -15°F to -10°F |
| Ophir | Zone 4b: -25°F to -20°F |
| Orchard | Zone 5a: -20°F to -15°F |
| Orchard City | Zone 6a: -10°F to -5°F |
| Orchard Mesa | Zone 7a: 0°F to 5°F |
| Ordway | Zone 5b: -15°F to -10°F |
| Otis | Zone 5b: -15°F to -10°F |
| Ouray | Zone 5a: -20°F to -15°F |
| Ovid | Zone 5a: -20°F to -15°F |
| Owl Canyon | Zone 5b: -15°F to -10°F |
| Padroni | Zone 5a: -20°F to -15°F |
| Pagosa Springs | Zone 4b: -25°F to -20°F |
| Palisade | Zone 6b: -5°F to 0°F |
| Palmer Lake | Zone 4b: -25°F to -20°F |
| Paoli | Zone 5a: -20°F to -15°F |
| Paonia | Zone 5a: -20°F to -15°F |
| Parachute | Zone 5b: -15°F to -10°F |
| Paradox | Zone 6a: -10°F to -5°F |
| Parker | Zone 5a: -20°F to -15°F |
| Parlin | Zone 4a: -30°F to -25°F |
| Parshall | Zone 4a: -30°F to -25°F |
| Peetz | Zone 5a: -20°F to -15°F |
| Penrose | Zone 6a: -10°F to -5°F |
| Peoria | Zone 5b: -15°F to -10°F |
| Perry Park | Zone 4b: -25°F to -20°F |
| Peyton | Zone 5b: -15°F to -10°F |
| Phippsburg | Zone 4a: -30°F to -25°F |
| Pierce | Zone 5b: -15°F to -10°F |
| Pine | Zone 4b: -25°F to -20°F |
| Pine Brook Hill | Zone 5a: -20°F to -15°F |
| Pinecliffe | Zone 5a: -20°F to -15°F |
| Pinneo | Zone 5b: -15°F to -10°F |
| Pitkin | Zone 4a: -30°F to -25°F |
| Placerville | Zone 5a: -20°F to -15°F |
| Platoro | Zone 4b: -25°F to -20°F |
| Platteville | Zone 5a: -20°F to -15°F |
| Pleasant View | Zone 5b: -15°F to -10°F |
| Poncha Springs | Zone 4b: -25°F to -20°F |
| Ponderosa Park | Zone 5a: -20°F to -15°F |
| Portland | Zone 5b: -15°F to -10°F |
| Powderhorn | Zone 4a: -30°F to -25°F |
| Price Creek | Zone 4a: -30°F to -25°F |
| Pritchett | Zone 5b: -15°F to -10°F |
| Prospect Heights | Zone 6a: -10°F to -5°F |
| Prospect Valley | Zone 5b: -15°F to -10°F |
| Pueblo | Zone 5b: -15°F to -10°F |
| Pueblo West | Zone 5b: -15°F to -10°F |
| Purgatory Resort | Zone 4b: -25°F to -20°F |
| Rabbit Ears Pass | Zone 3b: -35°F to -30°F |
| Ramah | Zone 5a: -20°F to -15°F |
| Rand | Zone 3b: -35°F to -30°F |
| Rangely | Zone 4b: -25°F to -20°F |
| Raymer | Zone 5a: -20°F to -15°F |
| Red Cliff | Zone 4b: -25°F to -20°F |
| Red Feather Lakes | Zone 4b: -25°F to -20°F |
| Red Wing | Zone 5b: -15°F to -10°F |
| Redlands | Zone 7a: 0°F to 5°F |
| Redstone | Zone 5a: -20°F to -15°F |
| Redvale | Zone 5a: -20°F to -15°F |
| Rico | Zone 4b: -25°F to -20°F |
| Ridgway | Zone 5b: -15°F to -10°F |
| Rifle | Zone 6a: -10°F to -5°F |
| Rock Creek Park | Zone 5b: -15°F to -10°F |
| Rockvale | Zone 6a: -10°F to -5°F |
| Rocky Ford | Zone 5b: -15°F to -10°F |
| Rocky Mountain Natl Park | Zone 4a: -30°F to -25°F |
| Roggen | Zone 5b: -15°F to -10°F |
| Rollinsville | Zone 5a: -20°F to -15°F |
| Romeo | Zone 4b: -25°F to -20°F |
| Roxborough Park | Zone 4b: -25°F to -20°F |
| Rush | Zone 5a: -20°F to -15°F |
| Rustic | Zone 4b: -25°F to -20°F |
| Ruxton | Zone 5b: -15°F to -10°F |
| Rye | Zone 5b: -15°F to -10°F |
| Saguache | Zone 4b: -25°F to -20°F |
| Saint Ann Highlands | Zone 5a: -20°F to -15°F |
| Saint Malo | Zone 4b: -25°F to -20°F |
| Saint Marys | Zone 5a: -20°F to -15°F |
| Salida | Zone 4b: -25°F to -20°F |
| Salt Creek | Zone 5b: -15°F to -10°F |
| San Acacio | Zone 4b: -25°F to -20°F |
| San Isabel | Zone 5b: -15°F to -10°F |
| San Luis | Zone 4b: -25°F to -20°F |
| San Pablo | Zone 4b: -25°F to -20°F |
| Sanford | Zone 4b: -25°F to -20°F |
| Sargents | Zone 4a: -30°F to -25°F |
| Sawpit | Zone 5a: -20°F to -15°F |
| Security-Widefield | Zone 5b: -15°F to -10°F |
| Sedalia | Zone 4b: -25°F to -20°F |
| Sedgwick | Zone 5a: -20°F to -15°F |
| Segundo | Zone 5b: -15°F to -10°F |
| Seibert | Zone 5a: -20°F to -15°F |
| Sequndo | Zone 5b: -15°F to -10°F |
| Seven Hills | Zone 5a: -20°F to -15°F |
| Severance | Zone 5b: -15°F to -10°F |
| Shawnee | Zone 4b: -25°F to -20°F |
| Sheridan | Zone 5a: -20°F to -15°F |
| Sheridan Lake | Zone 5b: -15°F to -10°F |
| Sherrelwood | Zone 5b: -15°F to -10°F |
| Silt | Zone 6a: -10°F to -5°F |
| Silver Cliff | Zone 5a: -20°F to -15°F |
| Silver Plume | Zone 5a: -20°F to -15°F |
| Silverthorne | Zone 4b: -25°F to -20°F |
| Silverton | Zone 4b: -25°F to -20°F |
| Simla | Zone 5a: -20°F to -15°F |
| Slater | Zone 4a: -30°F to -25°F |
| Smeltertown | Zone 4b: -25°F to -20°F |
| Snowmass | Zone 4b: -25°F to -20°F |
| Snowmass Ski Area | Zone 4a: -30°F to -25°F |
| Snowmass Village | Zone 4a: -30°F to -25°F |
| Snyder | Zone 5a: -20°F to -15°F |
| Somerset | Zone 5a: -20°F to -15°F |
| South Fork | Zone 5b: -15°F to -10°F |
| Southglenn | Zone 5a: -20°F to -15°F |
| Springfield | Zone 5b: -15°F to -10°F |
| Starkville | Zone 5b: -15°F to -10°F |
| Steamboat Ski And Resort Area | Zone 3b: -35°F to -30°F |
| Steamboat Springs | Zone 3b: -35°F to -30°F |
| Sterling | Zone 5a: -20°F to -15°F |
| Stone City | Zone 5b: -15°F to -10°F |
| Stonegate | Zone 5a: -20°F to -15°F |
| Stoneham | Zone 5a: -20°F to -15°F |
| Stonewall Gap | Zone 5a: -20°F to -15°F |
| Strasburg | Zone 5b: -15°F to -10°F |
| Stratmoor | Zone 5b: -15°F to -10°F |
| Stratton | Zone 5a: -20°F to -15°F |
| Sugar City | Zone 5b: -15°F to -10°F |
| Sugarloaf | Zone 5a: -20°F to -15°F |
| Sunbeam | Zone 4a: -30°F to -25°F |
| Sunlight | Zone 6a: -10°F to -5°F |
| Sunshine | Zone 5a: -20°F to -15°F |
| Superior | Zone 5b: -15°F to -10°F |
| Swallows | Zone 5b: -15°F to -10°F |
| Swink | Zone 5b: -15°F to -10°F |
| Tabernash | Zone 4b: -25°F to -20°F |
| Tall Timber | Zone 5a: -20°F to -15°F |
| Tarryall | Zone 3b: -35°F to -30°F |
| Telluride | Zone 5a: -20°F to -15°F |
| Telluride Ski And Golf | Zone 5a: -20°F to -15°F |
| Texas Creek | Zone 4b: -25°F to -20°F |
| The Pinery | Zone 5a: -20°F to -15°F |
| Thornton | Zone 5b: -15°F to -10°F |
| Timnath | Zone 5b: -15°F to -10°F |
| Timpas | Zone 5b: -15°F to -10°F |
| Tobe | Zone 5b: -15°F to -10°F |
| Todd Creek | Zone 5b: -15°F to -10°F |
| Toponas | Zone 4a: -30°F to -25°F |
| Torres | Zone 5a: -20°F to -15°F |
| Towaoc | Zone 6a: -10°F to -5°F |
| Towner | Zone 5b: -15°F to -10°F |
| Trimble | Zone 5a: -20°F to -15°F |
| Trinchera | Zone 5b: -15°F to -10°F |
| Trinidad | Zone 5b: -15°F to -10°F |
| Twin Lakes | Zone 4a: -30°F to -25°F |
| Two Buttes | Zone 5b: -15°F to -10°F |
| USAF Academy | Zone 5a: -20°F to -15°F |
| Vail | Zone 4b: -25°F to -20°F |
| Vail Mountain Resort | Zone 4b: -25°F to -20°F |
| Valdez | Zone 5b: -15°F to -10°F |
| Valmont | Zone 5b: -15°F to -10°F |
| Vernon | Zone 5a: -20°F to -15°F |
| Victor | Zone 5a: -20°F to -15°F |
| Vilas | Zone 5b: -15°F to -10°F |
| Villa Grove | Zone 4b: -25°F to -20°F |
| Vineland | Zone 5b: -15°F to -10°F |
| Vona | Zone 5a: -20°F to -15°F |
| Wagon Wheel Gap | Zone 4b: -25°F to -20°F |
| Walden | Zone 3b: -35°F to -30°F |
| Walsenburg | Zone 5b: -15°F to -10°F |
| Walsh | Zone 5b: -15°F to -10°F |
| Ward | Zone 4b: -25°F to -20°F |
| Watkins | Zone 5b: -15°F to -10°F |
| Welby | Zone 5b: -15°F to -10°F |
| Weldona | Zone 5a: -20°F to -15°F |
| Wellington | Zone 5b: -15°F to -10°F |
| West Pleasant View | Zone 5a: -20°F to -15°F |
| Westcliffe | Zone 4b: -25°F to -20°F |
| Westcreek | Zone 4b: -25°F to -20°F |
| Westminster | Zone 5b: -15°F to -10°F |
| Westminster East | Zone 5b: -15°F to -10°F |
| Weston | Zone 5b: -15°F to -10°F |
| Wetmore | Zone 5b: -15°F to -10°F |
| Wheat Ridge | Zone 5b: -15°F to -10°F |
| Whitewater | Zone 6b: -5°F to 0°F |
| Wiggins | Zone 5a: -20°F to -15°F |
| Wild Horse | Zone 5a: -20°F to -15°F |
| Wiley | Zone 5b: -15°F to -10°F |
| Wilkerson Pass | Zone 3b: -35°F to -30°F |
| Williamsburg | Zone 6a: -10°F to -5°F |
| Windsor | Zone 5b: -15°F to -10°F |
| Winter Park | Zone 4b: -25°F to -20°F |
| Winter Park Resort | Zone 4b: -25°F to -20°F |
| Wolcott | Zone 4b: -25°F to -20°F |
| Wolf Creek Ski Area | Zone 4b: -25°F to -20°F |
| Woodland Park | Zone 4b: -25°F to -20°F |
| Woodmoor | Zone 4b: -25°F to -20°F |
| Woodrow | Zone 5b: -15°F to -10°F |
| Woody Creek | Zone 4a: -30°F to -25°F |
| Wray | Zone 5a: -20°F to -15°F |
| Yampa | Zone 4a: -30°F to -25°F |
| Yellow Jacket | Zone 5b: -15°F to -10°F |
| Yoder | Zone 5a: -20°F to -15°F |
| Yuma | Zone 5a: -20°F to -15°F |