Ontario Interactive Average Last Frost Date Map

Plantmaps has derived zones indicating the Interactive map of average annual Last frost dates for the province of Ontario

Last Frost Date Maps for Neighboring States and Provinces

Related Ontario Maps:

List of Average Last Frost Dates for Cities and Towns in Ontario

Location	Average First Frost Date
Acton	May 1 - May 10
Actons Corners	May 11 - May 20
Ajax	May 11 - May 20
Alexandria	May 11 - May 20
Alliston	May 11 - May 20
Almonte	May 11 - May 20
Amherstburg	Apr. 11 - Apr. 20
Amherstburg	Apr. 11 - Apr. 20
Angus	May 11 - May 20
Arnprior	May 11 - May 20

Arthur	May 11 - May 20
Aurora	May 1 - May 10
Aylmer	May 1 - May 10
Aylmer	May 1 - May 10
Azilda	May 11 - May 20
Bala	May 11 - May 20
Ballantrae	May 1 - May 10
Bancroft	May 1 - May 10
Barrie	May 11 - May 20

Barry's Bay	May 21 - May 31
Baysville	May 11 - May 20
Beeton	May 1 - May 10
Belle River	Apr. 21 - Apr. 30
Belleville	May 1 - May 10
Belmont	May 1 - May 10
Blenheim	Apr. 21 - Apr. 30
Blind River	May 1 - May 10
Bowmanville	May 1 - May 10

Bracebridge	May 21 - May 31
Bradford	May 1 - May 10
Brampton	Apr. 21 - Apr. 30
Branchton	May 1 - May 10
Brantford	May 1 - May 10
Brighton	Apr. 21 - Apr. 30
Brockville	May 11 - May 20
Brooklin	May 11 - May 20
Bruce Mines	May 11 - May 20
Burlington	May 1 - May 10
CFB Petawawa	May 21 - May 31
Caledon	May 1 - May 10
Caledonia	Apr. 21 - Apr. 30
Cambridge	May 1 - May 10
Capreol	May 11 - May 20
Carleton Place	May 11 - May 20
Carlisle	May 1 - May 10
Carlow Mayo	May 11 - May 20
Cartier	May 11 - May 20
Casselman	May 11 - May 20
Cayuga	Apr. 21 - Apr. 30
Chatham	Apr. 21 - Apr. 30
Chelmsford	May 11 - May 20
Chesley	May 11 - May 20
Clarence-Rockland	May 1 - May 10
Clarence-Rockland	May 1 - May 10
Clinton	May 1 - May 10
Cobalt	Jun. 1 - Jun. 10
Cobourg	Apr. 21 - Apr. 30
Cochrane	Jun. 1 - Jun. 10
Collingwood	May 11 - May 20
Cornwall	May 11 - May 20
Cornwall	May 11 - May 20
Corunna	May 1 - May 10
Courtice	May 11 - May 20
Deep River	May 21 - May 31
Delhi	Apr. 21 - Apr. 30
Deseronto	May 1 - May 10
Dorchester	May 1 - May 10
Dorset	May 11 - May 20
Dowling	May 11 - May 20
Dresden	May 1 - May 10
Dryden	May 1 - May 10
Dubreuilville	May 21 - May 31
Dundas	May 1 - May 10
Dunnville	Apr. 21 - Apr. 30
Durham	May 11 - May 20
Ear Falls	May 11 - May 20
Elliot Lake	May 1 - May 10
Elmira	May 11 - May 20
Elmvale	May 11 - May 20
Embrun	May 1 - May 10
Emeryville	Apr. 21 - Apr. 30
Emo	May 21 - May 31
Englehart	Jun. 11 - Jun. 20
Erin	May 1 - May 10
Ernestown	Apr. 21 - Apr. 30
Espanola	May 1 - May 10
Espanola	May 1 - May 10
Essex	Apr. 11 - Apr. 20
Exeter	May 11 - May 20
Faraday	May 1 - May 10
Fenelon Falls	May 11 - May 20
Fennells Corner	May 11 - May 20
Fergus	May 1 - May 10
Fordwich	May 11 - May 20
Fort Albany	Jun. 21 - Jun. 30
Fort Erie	Apr. 21 - Apr. 30
Fort Frances	May 21 - May 31
Fort Severn	Jun. 1 - Jun. 10
Freelton	May 1 - May 10
Galt	May 1 - May 10
Gananoque	May 1 - May 10
Georgetown	May 1 - May 10
Geraldton	Jun. 1 - Jun. 10
Glencoe	May 11 - May 20
Goderich	May 1 - May 10
Grafton	Apr. 21 - Apr. 30
Gravenhurst	May 11 - May 20
Grimsby	Apr. 21 - Apr. 30
Guelph	May 1 - May 10
Hagersville	Apr. 21 - Apr. 30
Haileybury	Jun. 1 - Jun. 10
Haliburton	May 11 - May 20
Hamilton	May 1 - May 10
Hanmer	May 11 - May 20
Hanover	May 11 - May 20
Harrow	Apr. 11 - Apr. 20
Harrowsmith	Apr. 21 - Apr. 30
Hawkesbury	May 21 - May 31
Hawkesbury	May 21 - May 31
Hearst	Jun. 1 - Jun. 10
Hespeler	May 1 - May 10
Holland Landing	May 1 - May 10
Huntsville	May 11 - May 20
Huron Shores	May 1 - May 10
Ignace	May 21 - May 31
Ingersoll	May 1 - May 10
Ingleside	May 11 - May 20
Ingolf	May 21 - May 31
Iron Bridge	May 1 - May 10
Iroquois Falls	Jun. 1 - Jun. 10
Kanata	May 1 - May 10
Kapuskasing	Jun. 1 - Jun. 10
Kapuskasing	Jun. 1 - Jun. 10
Kearney	May 11 - May 20
Kemptville	May 11 - May 20
Kenora	May 11 - May 20
Keswick	May 11 - May 20
Kinburn	May 11 - May 20
Kincardine	May 1 - May 10
King City	May 1 - May 10
Kingston	Apr. 21 - Apr. 30
Kirkland Lake	Jun. 1 - Jun. 10
Kitchener	May 1 - May 10
LaSalle	Apr. 11 - Apr. 20
Lakefield	May 1 - May 10
Lanark	May 11 - May 20
Lansdowne	May 1 - May 10
Leamington	Apr. 11 - Apr. 20
Lefaivre	May 21 - May 31
Lefaivre	May 21 - May 31
Levack	May 11 - May 20
Limerick	May 1 - May 10
Lincoln	Apr. 21 - Apr. 30
Lindsay	May 11 - May 20
Listowel	May 11 - May 20
Little Current	Apr. 21 - Apr. 30
London	May 1 - May 10
Longlac	May 21 - May 31
MacTier	May 11 - May 20
Manotick	May 1 - May 10
Marathon	May 1 - May 10
Markham	May 1 - May 10
Marmora	May 1 - May 10
Massey	May 1 - May 10
Matachewan	Jun. 1 - Jun. 10
Mattawa	May 11 - May 20
Mattawa	May 11 - May 20
Maynooth	May 11 - May 20
Meaford	May 11 - May 20
Merrickville	May 11 - May 20
Metcalfe	May 1 - May 10
Midland	May 11 - May 20
Milton	May 1 - May 10
Minden	May 11 - May 20
Mississauga	Apr. 21 - Apr. 30
Mitchell	May 11 - May 20
Moose Factory	Jun. 21 - Jun. 30
Moosonee	Jun. 21 - Jun. 30
Morrisburg	May 11 - May 20
Mount Albert	May 11 - May 20
Mount Forest	May 11 - May 20
Napanee	May 1 - May 10
Nepean	May 1 - May 10
New Hamburg	May 1 - May 10
New Liskeard	Jun. 1 - Jun. 10
Newcastle	May 1 - May 10
Newmarket	May 1 - May 10
Newton Robinson	May 11 - May 20
Niagara Falls	Apr. 21 - Apr. 30
Niagara-on-the-Lake	Apr. 21 - Apr. 30
Nipigon	May 21 - May 31
North Bay	May 11 - May 20
North Cobalt	Jun. 1 - Jun. 10
Northshore	May 1 - May 10
Norwich	May 1 - May 10
Oakville	May 1 - May 10
Onaping	May 11 - May 20
Orangeville	May 1 - May 10
Orillia	May 1 - May 10
Oshawa	May 11 - May 20
Ottawa	May 1 - May 10
Owen Sound	May 1 - May 10
Paisley	May 1 - May 10
Palmerston	May 11 - May 20
Paris	May 1 - May 10
Parry Sound	May 21 - May 31
Peawanuck	Jun. 1 - Jun. 10
Pelham	Apr. 21 - Apr. 30
Pembroke	May 21 - May 31
Penetanguishene	May 11 - May 20
Perth	May 11 - May 20
Petawawa	May 21 - May 31
Peterborough	May 11 - May 20
Petrolia	May 1 - May 10
Pickering	May 11 - May 20
Picton	Apr. 21 - Apr. 30
Pikangikum	May 21 - May 31
Pleasant Point	May 1 - May 10
Port Carling	May 11 - May 20
Port Colborne	Apr. 11 - Apr. 20
Port Dover	Apr. 21 - Apr. 30
Port Elgin	May 1 - May 10
Port Hope	Apr. 21 - Apr. 30
Port Lambton	Apr. 21 - Apr. 30
Port Perry	May 11 - May 20
Port Stanley	May 1 - May 10
Powassan	May 11 - May 20
Prescott	May 1 - May 10
Preston	May 1 - May 10
Prince Edward County	May 1 - May 10
Queensville	May 1 - May 10
Red Lake	May 21 - May 31
Red Rock	May 21 - May 31
Renfrew	May 11 - May 20
Richmond Hill	May 1 - May 10
Ridgetown	May 1 - May 10
Rockton	May 1 - May 10
Rockwood	May 1 - May 10
Russell	May 1 - May 10
Sandy Lake	May 21 - May 31
Sarnia	May 1 - May 10
Sauble Beach	May 1 - May 10
Sault Ste. Marie	May 21 - May 31
Sault Ste. Marie	May 21 - May 31
Schreiber	May 1 - May 10
Seaforth	May 11 - May 20
Shannonville	May 1 - May 10
Sheffield	May 1 - May 10
Shelburne	May 1 - May 10
Simcoe	Apr. 21 - Apr. 30
Sioux Narrows	May 11 - May 20
Skead	May 11 - May 20
Smiths Falls	May 11 - May 20
Smooth Rock Falls	Jun. 1 - Jun. 10
Southampton	May 1 - May 10
St Thomas	May 1 - May 10
St. Catharines	Apr. 21 - Apr. 30
St. Marys	May 1 - May 10
Stayner	May 11 - May 20
Stittsville	May 11 - May 20
Stoney Creek	May 1 - May 10
Stouffville	May 1 - May 10
Stratford	May 1 - May 10
Strathroy	May 11 - May 20
Sturgeon Falls	May 11 - May 20
Sudbury	May 11 - May 20
Sutton	May 1 - May 10
Sutton West	May 1 - May 10
Tavistock	May 1 - May 10
Tecumseh	Apr. 11 - Apr. 20
Temagami	Jun. 1 - Jun. 10
Temiskaming Shores	Jun. 1 - Jun. 10
Terrace Bay	May 1 - May 10
Thessalon	May 1 - May 10
Thornbury	May 11 - May 20
Thorold	Apr. 21 - Apr. 30
Thunder Bay	May 21 - May 31
Tillsonburg	May 1 - May 10
Timmins	Jun. 1 - Jun. 10
Timmins	Jun. 1 - Jun. 10
Toronto	Apr. 11 - Apr. 20
Trenton	May 1 - May 10
Tudor and Cashel	May 1 - May 10
Tweed	May 1 - May 10
Tyendinaga	May 1 - May 10
Uxbridge	May 11 - May 20
Val Caron	May 11 - May 20
Val Therese	May 11 - May 20
Vandorf	May 1 - May 10
Vaughan	Apr. 21 - Apr. 30
Victoria Harbour	May 11 - May 20
Wainfleet Township	Apr. 21 - Apr. 30
Walkerton	May 11 - May 20
Wallaceburg	May 1 - May 10
Wasaga Beach	May 11 - May 20
Waterdown	May 1 - May 10
Waterford	Apr. 21 - Apr. 30
Waterloo	May 11 - May 20
Wawa	Jun. 1 - Jun. 10
Welland	Apr. 21 - Apr. 30
West Lincoln Township	Apr. 21 - Apr. 30
Wheatley	Apr. 11 - Apr. 20
Whitby	May 11 - May 20
Wiarton	May 1 - May 10
Williamsburg	May 11 - May 20
Winchester	May 1 - May 10
Windsor	Apr. 11 - Apr. 20
Winona	Apr. 21 - Apr. 30
Wollaston	May 1 - May 10
Woodstock	May 1 - May 10

Map of Ontario Average Last Frost Dates

Last Frost Date Maps for Neighboring States and Provinces

Related Ontario Maps:

List of Average Last Frost Dates for Cities and Towns in Ontario