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
Acton100-125 Days
Actons Corners100-125 Days
Ajax75-100 Days
Alexandria100-125 Days
Allanburg75-100 Days
Alliston100-125 Days
Almonte125-150 Days
Amherstburg50-75 Days
Angus100-125 Days
Arnprior125-150 Days
Arthur100-125 Days
Aurora100-125 Days
Aylmer75-100 Days
Azilda100-125 Days
Bala100-125 Days
Ballantrae100-125 Days
Ballinafad100-125 Days
Bancroft125-150 Days
Barrie100-125 Days
Barry's Bay125-150 Days
Baysville125-150 Days
Beeton100-125 Days
Belle River75-100 Days
Belleville100-125 Days
Belmont100-125 Days
Blenheim75-100 Days
Blind River125-150 Days
Bowmanville75-100 Days
Bracebridge100-125 Days
Bradford100-125 Days
Brampton100-125 Days
Branchton100-125 Days
Brantford75-100 Days
Brighton100-125 Days
Brockville100-125 Days
Brooklin75-100 Days
Bruce Mines125-150 Days
Burlington75-100 Days
Caledon100-125 Days
Caledonia75-100 Days
Cambridge100-125 Days
Capreol75-100 Days
Carleton Place125-150 Days
Carlisle75-100 Days
Carlow/Mayo125-150 Days
Cartier125-150 Days
Casselman125-150 Days
Cayuga75-100 Days
CFB Petawawa125-150 Days
Chatham75-100 Days
Chelmsford100-125 Days
Chesley100-125 Days
Clarence-Rockland125-150 Days
Clinton100-125 Days
Cobalt125-150 Days
Cobourg100-125 Days
Cochrane150-180 Days
Collingwood100-125 Days
Cornwall100-125 Days
Corunna75-100 Days
Courtice75-100 Days
Courtland75-100 Days
Deep River125-150 Days
Delhi75-100 Days
Deseronto100-125 Days
Dorchester100-125 Days
Dorset125-150 Days
Dowling100-125 Days
Dresden75-100 Days
Dryden125-150 Days
Dubreuilville150-180 Days
Dundas75-100 Days
Dunnville75-100 Days
Durham125-150 Days
Ear Falls150-180 Days
Elliot Lake125-150 Days
Elmira100-125 Days
Elmvale100-125 Days
Embrun125-150 Days
Emeryville75-100 Days
Emo125-150 Days
Englehart150-180 Days
Erin100-125 Days
Ernestown100-125 Days
Espanola125-150 Days
Essex75-100 Days
Exeter100-125 Days
Fenelon Falls125-150 Days
Fennells Corner100-125 Days
Fergus100-125 Days
Fordwich125-150 Days
Fort Albany150-180 Days
Fort Erie75-100 Days
Fort Frances150-180 Days
Fort Severn150-180 Days
Freelton75-100 Days
Galt100-125 Days
Gananoque100-125 Days
Georgetown100-125 Days
Geraldton150-180 Days
Glencoe100-125 Days
Goderich100-125 Days
Gogama125-150 Days
Grafton100-125 Days
Gravenhurst100-125 Days
Grimsby75-100 Days
Guelph100-125 Days
Hagersville75-100 Days
Haileybury125-150 Days
Haliburton150-180 Days
Hamilton75-100 Days
Hanmer75-100 Days
Hanover125-150 Days
Harrow75-100 Days
Harrowsmith125-150 Days
Hawkesbury125-150 Days
Hearst150-180 Days
Hespeler100-125 Days
Holland Landing100-125 Days
Huron Shores125-150 Days
Ignace125-150 Days
Ingersoll75-100 Days
Ingleside125-150 Days
Ingolf150-180 Days
Iron Bridge125-150 Days
Iroquois Falls150-180 Days
Kapuskasing125-150 Days
Kapuskasing125-150 Days
Kearney125-150 Days
Kemptville100-125 Days
Kenora125-150 Days
Keswick100-125 Days
Kincardine75-100 Days
King City100-125 Days
Kingston100-125 Days
Kirkland Lake150-180 Days
Kitchener100-125 Days
Lakefield100-125 Days
Lanark125-150 Days
Lansdowne100-125 Days
LaSalle75-100 Days
Leamington75-100 Days
Lefaivre125-150 Days
Levack100-125 Days
Limerick100-125 Days
Lincoln75-100 Days
Lindsay100-125 Days
Listowel125-150 Days
Little Current125-150 Days
London100-125 Days
Longlac150-180 Days
MacTier100-125 Days
Marathon150-180 Days
Markham100-125 Days
Marmora100-125 Days
Marten Falls First Nation150-180 Days
Massey125-150 Days
Matachewan150-180 Days
Mattawa125-150 Days
Maynooth125-150 Days
Meaford125-150 Days
Merrickville100-125 Days
Metcalfe125-150 Days
Midland100-125 Days
Milton100-125 Days
Minden125-150 Days
Mississauga75-100 Days
Mitchell100-125 Days
Moosonee150-180 Days
Morrisburg100-125 Days
Mount Albert100-125 Days
Mount Forest125-150 Days
Napanee100-125 Days
New Hamburg100-125 Days
New Liskeard125-150 Days
Newcastle75-100 Days
Newmarket100-125 Days
Niagara Falls75-100 Days
Niagara-on-the-Lake75-100 Days
Nipigon150-180 Days
North Cobalt125-150 Days
Northshore125-150 Days
Norwich75-100 Days
Oakville75-100 Days
Onaping100-125 Days
Orangeville100-125 Days
Orillia75-100 Days
Oshawa75-100 Days
Ottawa125-150 Days
Owen Sound125-150 Days
Paisley100-125 Days
Palmerston125-150 Days
Paris100-125 Days
Parry Sound100-125 Days
Peawanuck150-180 Days
Pelham75-100 Days
Pembroke125-150 Days
Penetanguishene100-125 Days
Perth125-150 Days
Petawawa125-150 Days
Peterborough100-125 Days
Petrolia75-100 Days
Pickering75-100 Days
Picton100-125 Days
Pikangikum150-180 Days
Pleasant Point125-150 Days
Port Carling100-125 Days
Port Colborne75-100 Days
Port Dover75-100 Days
Port Elgin100-125 Days
Port Hope100-125 Days
Port Lambton75-100 Days
Port Perry100-125 Days
Port Stanley75-100 Days
Powassan125-150 Days
Prescott100-125 Days
Preston100-125 Days
Prince Edward County100-125 Days
Queensville100-125 Days
Rama100-125 Days
Red Lake150-180 Days
Red Rock150-180 Days
Renfrew125-150 Days
Richmond Hill100-125 Days
Ridgetown75-100 Days
Rockton75-100 Days
Rockwood100-125 Days
Russell125-150 Days
Salford75-100 Days
Sandy Lake150-180 Days
Sarnia75-100 Days
Sauble Beach125-150 Days
Sault Ste. Marie125-150 Days
Schreiber150-180 Days
Seaforth100-125 Days
Shannonville100-125 Days
Sheffield100-125 Days
Shelburne100-125 Days
Simcoe75-100 Days
Sioux Narrows150-180 Days
Skead75-100 Days
Smiths Falls125-150 Days
Smooth Rock Falls150-180 Days
South Middleton75-100 Days
Southampton100-125 Days
St Thomas75-100 Days
St. Catharines75-100 Days
St. Marys100-125 Days
Stayner100-125 Days
Stoney Creek75-100 Days
Stouffville100-125 Days
Stratford100-125 Days
Strathroy100-125 Days
Sturgeon Falls100-125 Days
Sudbury75-100 Days
Sutton100-125 Days
Sutton West100-125 Days
Tavistock100-125 Days
Tecumseh75-100 Days
Temagami100-125 Days
Temiskaming Shores125-150 Days
Terrace Bay150-180 Days
Thessalon125-150 Days
Thornbury125-150 Days
Thorold75-100 Days
Thunder Bay150-180 Days
Tillsonburg75-100 Days
Timmins150-180 Days
Toronto75-100 Days
Trenton100-125 Days
Tudor and Cashel100-125 Days
Tweed100-125 Days
Tyendinaga100-125 Days
Uxbridge100-125 Days
Val Caron75-100 Days
Val Therese75-100 Days
Vandorf100-125 Days
Vaughan100-125 Days
Victoria Harbour100-125 Days
Wainfleet Township75-100 Days
Walkerton100-125 Days
Wallaceburg75-100 Days
Wasaga Beach100-125 Days
Waterdown75-100 Days
Waterford75-100 Days
Waterloo100-125 Days
Wawa150-180 Days
Welland75-100 Days
West Lincoln Township75-100 Days
Wheatley75-100 Days
Whitby75-100 Days
Wiarton125-150 Days
Williamsburg100-125 Days
Winchester100-125 Days
Windsor75-100 Days
Winona75-100 Days
Wollaston125-150 Days
Woodstock75-100 Days

Maps for Neighboring Areas

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