Average Frost Days for Ontario

About Frost Days in Ontario

Average days with Frost vary in the Province of Ontario depending on latitude, elevation and proximity to the Great Lakes. The Far Northern areas of Ontario experience the most days with Frost with up to 180 days while Southern areas along the shores of Lake Ontario and Lake Erie eperience fewer frost days ranging from 100 to 125 days. Frost Days were calculated using daily climate data from the period between 1991-2020.

Map List Related Pages

Interactive Map of Average Frost Days for Ontario

Click on the map for more information. Click on the icon in the lower right to view the map legend. Add additional data layers using the icon in the upper right corner.

List of Average Frost Days for Locations in Ontario

LocationAverage Frost Days
Acton125-150 Days
Actons Corners125-150 Days
Ajax100-125 Days
Alexandria125-150 Days
Allanburg100-125 Days
Alliston125-150 Days
Almonte150-180 Days
Amherstburg75-100 Days
Angus125-150 Days
Arnprior150-180 Days
Arthur125-150 Days
Aurora125-150 Days
Aylmer100-125 Days
Azilda125-150 Days
Bala125-150 Days
Ballantrae125-150 Days
Ballinafad125-150 Days
Bancroft150-180 Days
Barrie125-150 Days
Barry's Bay150-180 Days
Baysville150-180 Days
Beeton125-150 Days
Belle River100-125 Days
Belleville125-150 Days
Belmont125-150 Days
Blenheim100-125 Days
Blind River150-180 Days
Bowmanville100-125 Days
Bracebridge125-150 Days
Bradford125-150 Days
Brampton125-150 Days
Branchton125-150 Days
Brantford100-125 Days
Brighton125-150 Days
Brockville125-150 Days
Brooklin100-125 Days
Bruce Mines150-180 Days
Burlington100-125 Days
Caledon125-150 Days
Caledonia100-125 Days
Cambridge125-150 Days
Capreol100-125 Days
Carleton Place150-180 Days
Carlisle100-125 Days
Carlow/Mayo150-180 Days
Cartier150-180 Days
Casselman150-180 Days
Cayuga100-125 Days
CFB Petawawa150-180 Days
Chatham100-125 Days
Chelmsford125-150 Days
Chesley125-150 Days
Clarence-Rockland150-180 Days
Clinton125-150 Days
Cobalt150-180 Days
Cobourg125-150 Days
CochraneOver 180 Days
Collingwood125-150 Days
Cornwall125-150 Days
Corunna100-125 Days
Courtice100-125 Days
Courtland100-125 Days
Deep River150-180 Days
Delhi100-125 Days
Deseronto125-150 Days
Dorchester125-150 Days
Dorset150-180 Days
Dowling125-150 Days
Dresden100-125 Days
Dryden150-180 Days
DubreuilvilleOver 180 Days
Dundas100-125 Days
Dunnville100-125 Days
Durham150-180 Days
Ear FallsOver 180 Days
Elliot Lake150-180 Days
Elmira125-150 Days
Elmvale125-150 Days
Embrun150-180 Days
Emeryville100-125 Days
Emo150-180 Days
EnglehartOver 180 Days
Erin125-150 Days
Ernestown125-150 Days
Espanola150-180 Days
Essex100-125 Days
Exeter125-150 Days
Fenelon Falls150-180 Days
Fennells Corner125-150 Days
Fergus125-150 Days
Fordwich150-180 Days
Fort AlbanyOver 180 Days
Fort Erie100-125 Days
Fort FrancesOver 180 Days
Fort SevernOver 180 Days
Freelton100-125 Days
Galt125-150 Days
Gananoque125-150 Days
Georgetown125-150 Days
GeraldtonOver 180 Days
Glencoe125-150 Days
Goderich125-150 Days
Gogama150-180 Days
Grafton125-150 Days
Gravenhurst125-150 Days
Grimsby100-125 Days
Guelph125-150 Days
Hagersville100-125 Days
Haileybury150-180 Days
HaliburtonOver 180 Days
Hamilton100-125 Days
Hanmer100-125 Days
Hanover150-180 Days
Harrow100-125 Days
Harrowsmith150-180 Days
Hawkesbury150-180 Days
HearstOver 180 Days
Hespeler125-150 Days
Holland Landing125-150 Days
Huron Shores150-180 Days
Ignace150-180 Days
Ingersoll100-125 Days
Ingleside150-180 Days
IngolfOver 180 Days
Iron Bridge150-180 Days
Iroquois FallsOver 180 Days
Kapuskasing150-180 Days
Kapuskasing150-180 Days
Kearney150-180 Days
Kemptville125-150 Days
Kenora150-180 Days
Keswick125-150 Days
Kincardine100-125 Days
King City125-150 Days
Kingston125-150 Days
Kirkland LakeOver 180 Days
Kitchener125-150 Days
Lakefield125-150 Days
Lanark150-180 Days
Lansdowne125-150 Days
LaSalle100-125 Days
Leamington100-125 Days
Lefaivre150-180 Days
Levack125-150 Days
Limerick125-150 Days
Lincoln100-125 Days
Lindsay125-150 Days
Listowel150-180 Days
Little Current150-180 Days
London125-150 Days
LonglacOver 180 Days
MacTier125-150 Days
MarathonOver 180 Days
Markham125-150 Days
Marmora125-150 Days
Marten Falls First NationOver 180 Days
Massey150-180 Days
MatachewanOver 180 Days
Mattawa150-180 Days
Maynooth150-180 Days
Meaford150-180 Days
Merrickville125-150 Days
Metcalfe150-180 Days
Midland125-150 Days
Milton125-150 Days
Minden150-180 Days
Mississauga100-125 Days
Mitchell125-150 Days
MoosoneeOver 180 Days
Morrisburg125-150 Days
Mount Albert125-150 Days
Mount Forest150-180 Days
Napanee125-150 Days
New Hamburg125-150 Days
New Liskeard150-180 Days
Newcastle100-125 Days
Newmarket125-150 Days
Niagara Falls100-125 Days
Niagara-on-the-Lake100-125 Days
NipigonOver 180 Days
North Cobalt150-180 Days
Northshore150-180 Days
Norwich100-125 Days
Oakville100-125 Days
Onaping125-150 Days
Orangeville125-150 Days
Orillia100-125 Days
Oshawa100-125 Days
Ottawa150-180 Days
Owen Sound150-180 Days
Paisley125-150 Days
Palmerston150-180 Days
Paris125-150 Days
Parry Sound125-150 Days
PeawanuckOver 180 Days
Pelham100-125 Days
Pembroke150-180 Days
Penetanguishene125-150 Days
Perth150-180 Days
Petawawa150-180 Days
Peterborough125-150 Days
Petrolia100-125 Days
Pickering100-125 Days
Picton125-150 Days
PikangikumOver 180 Days
Pleasant Point150-180 Days
Port Carling125-150 Days
Port Colborne100-125 Days
Port Dover100-125 Days
Port Elgin125-150 Days
Port Hope125-150 Days
Port Lambton100-125 Days
Port Perry125-150 Days
Port Stanley100-125 Days
Powassan150-180 Days
Prescott125-150 Days
Preston125-150 Days
Prince Edward County125-150 Days
Queensville125-150 Days
Rama125-150 Days
Red LakeOver 180 Days
Red RockOver 180 Days
Renfrew150-180 Days
Richmond Hill125-150 Days
Ridgetown100-125 Days
Rockton100-125 Days
Rockwood125-150 Days
Russell150-180 Days
Salford100-125 Days
Sandy LakeOver 180 Days
Sarnia100-125 Days
Sauble Beach150-180 Days
Sault Ste. Marie150-180 Days
SchreiberOver 180 Days
Seaforth125-150 Days
Shannonville125-150 Days
Sheffield125-150 Days
Shelburne125-150 Days
Simcoe100-125 Days
Sioux NarrowsOver 180 Days
Skead100-125 Days
Smiths Falls150-180 Days
Smooth Rock FallsOver 180 Days
South Middleton100-125 Days
Southampton125-150 Days
St Thomas100-125 Days
St. Catharines100-125 Days
St. Marys125-150 Days
Stayner125-150 Days
Stoney Creek100-125 Days
Stouffville125-150 Days
Stratford125-150 Days
Strathroy125-150 Days
Sturgeon Falls125-150 Days
Sudbury100-125 Days
Sutton125-150 Days
Sutton West125-150 Days
Tavistock125-150 Days
Tecumseh100-125 Days
Temagami125-150 Days
Temiskaming Shores150-180 Days
Terrace BayOver 180 Days
Thessalon150-180 Days
Thornbury150-180 Days
Thorold100-125 Days
Thunder BayOver 180 Days
Tillsonburg100-125 Days
TimminsOver 180 Days
Toronto100-125 Days
Trenton125-150 Days
Tudor and Cashel125-150 Days
Tweed125-150 Days
Tyendinaga125-150 Days
Uxbridge125-150 Days
Val Caron100-125 Days
Val Therese100-125 Days
Vandorf125-150 Days
Vaughan125-150 Days
Victoria Harbour125-150 Days
Wainfleet Township100-125 Days
Walkerton125-150 Days
Wallaceburg100-125 Days
Wasaga Beach125-150 Days
Waterdown100-125 Days
Waterford100-125 Days
Waterloo125-150 Days
WawaOver 180 Days
Welland100-125 Days
West Lincoln Township100-125 Days
Wheatley100-125 Days
Whitby100-125 Days
Wiarton150-180 Days
Williamsburg125-150 Days
Winchester125-150 Days
Windsor100-125 Days
Winona100-125 Days
Wollaston150-180 Days
Woodstock100-125 Days

Maps for Neighboring Areas

2026 plantmaps.com