Interactive Ontario Canada Last Frost Map

Interactive map of average annual Last frost dates for the Province of Ontario

Average Last Frost
April 1 - 10

Average Last Frost
April 11 - 21

Average Last Frost
April 21 - 30

Average Last Frost
May 1 - 10

Average Last Frost May 11 - 20

Average Last Frost May 21 - 31

Average Last Frost June 1 - 10

Average Last Frost June 11 - 20

Average Last Frost June 21 - 30

First Frost Maps for Adjacent States/Provinces

Quebec Last Frost Date Map
Manitoba Last Frost Date Map
Minnesota Last Frost Date Map
Michigan Last Frost Date Map
New York Last Frost Date Map

Other Interactive Gardening Maps for Ontario

Ontario First Frost Date Map
Ontario Hardiness Zone Map

Zoom to Major Cities in Ontario

Zoom to Ajax Last FrostAjax Last Frost: May 11 - 20
Zoom to Amherstburg Last FrostAmherstburg Last Frost: April 11 - 20
Zoom to Angus Last FrostAngus Last Frost: May 11 - 20
Zoom to Arnprior Last FrostArnprior Last Frost: May 11 - 20
Zoom to Atikokan Last FrostAtikokan Last Frost: June 11 - 20
Zoom to Bancroft Last FrostBancroft Last Frost: May 1 - 10
Zoom to Barrie Last FrostBarrie Last Frost: May 11 - 20
Zoom to Belleville Last FrostBelleville Last Frost: May 1 - 10
Zoom to Bells Corners Last FrostBells Corners Last Frost: May 1 - 10
Zoom to Bourget Last FrostBourget Last Frost: May 1 - 10
Zoom to Bracebridge Last FrostBracebridge Last Frost: May 11 - 20
Zoom to Brampton Last FrostBrampton Last Frost: April 21 - 30
Zoom to Brant Last FrostBrant Last Frost: May 1 - 10
Zoom to Brantford Last FrostBrantford Last Frost: May 1 - 10
Zoom to Brockville Last FrostBrockville Last Frost: May 11 - 20
Zoom to Burlington Last FrostBurlington Last Frost: May 1 - 10
Zoom to Cambridge Last FrostCambridge Last Frost: May 1 - 10
Zoom to Camlachie Last FrostCamlachie Last Frost: May 1 - 10
Zoom to Carleton Place Last FrostCarleton Place Last Frost: May 11 - 20
Zoom to Casselman Last FrostCasselman Last Frost: May 11 - 20
Zoom to Cobourg Last FrostCobourg Last Frost: April 21 - 30
Zoom to Collingwood Last FrostCollingwood Last Frost: May 11 - 20
Zoom to Cornwall Last FrostCornwall Last Frost: May 11 - 20
Zoom to Delhi Last FrostDelhi Last Frost: April 21 - 30
Zoom to Deseronto Last FrostDeseronto Last Frost: May 1 - 10
Zoom to Dryden Last FrostDryden Last Frost: May 1 - 10
Zoom to Dundas Last FrostDundas Last Frost: May 1 - 10
Zoom to Elliot Lake Last FrostElliot Lake Last Frost: May 1 - 10
Zoom to Englehart Last FrostEnglehart Last Frost: June 11 - 20
Zoom to Espanola Last FrostEspanola Last Frost: May 1 - 10
Zoom to Essex Last FrostEssex Last Frost: April 21 - 30
Zoom to Etobicoke Last FrostEtobicoke Last Frost: April 21 - 30
Zoom to Fort Erie Last FrostFort Erie Last Frost: April 21 - 30
Zoom to Fort Frances Last FrostFort Frances Last Frost: May 21 - 31
Zoom to Gananoque Last FrostGananoque Last Frost: May 1 - 10
Zoom to Goderich Last FrostGoderich Last Frost: May 1 - 10
Zoom to Gravenhurst Last FrostGravenhurst Last Frost: May 11 - 20
Zoom to Grimsby Last FrostGrimsby Last Frost: April 21 - 30
Zoom to Guelph Last FrostGuelph Last Frost: May 1 - 10
Zoom to Hamilton Last FrostHamilton Last Frost: May 1 - 10
Zoom to Hanover Last FrostHanover Last Frost: May 11 - 20
Zoom to Hawkesbury Last FrostHawkesbury Last Frost: May 21 - 31
Zoom to Hearst Last FrostHearst Last Frost: June 1 - 10
Zoom to Hull Last FrostHull Last Frost: May 11 - 20
Zoom to Huntsville Last FrostHuntsville Last Frost: May 11 - 20
Zoom to Ingersoll Last FrostIngersoll Last Frost: May 1 - 10
Zoom to Innisfil Last FrostInnisfil Last Frost: May 11 - 20
Zoom to Iroquois Falls Last FrostIroquois Falls Last Frost: June 11 - 20
Zoom to Kanata Last FrostKanata Last Frost: May 11 - 20
Zoom to Kapuskasing Last FrostKapuskasing Last Frost: June 1 - 10
Zoom to Kenora Last FrostKenora Last Frost: May 11 - 20
Zoom to Keswick Last FrostKeswick Last Frost: May 11 - 20
Zoom to Kingston Last FrostKingston Last Frost: April 21 - 30
Zoom to Kirkland Lake Last FrostKirkland Lake Last Frost: June 11 - 20
Zoom to Kitchener Last FrostKitchener Last Frost: May 1 - 10
Zoom to Leamington Last FrostLeamington Last Frost: April 11 - 20
Zoom to Lindsay Last FrostLindsay Last Frost: May 11 - 20
Zoom to London Last FrostLondon Last Frost: May 1 - 10
Zoom to MacKenzie Last FrostMacKenzie Last Frost: May 21 - 31
Zoom to Marathon Last FrostMarathon Last Frost: May 1 - 10
Zoom to Markham Last FrostMarkham Last Frost: May 1 - 10
Zoom to Mattawa Last FrostMattawa Last Frost: May 11 - 20
Zoom to Midland Last FrostMidland Last Frost: May 11 - 20
Zoom to Millbrook Last FrostMillbrook Last Frost: May 1 - 10
Zoom to Milton Heights Last FrostMilton Heights Last Frost: May 1 - 10
Zoom to Mississauga Last FrostMississauga Last Frost: April 21 - 30
Zoom to Nanticoke Last FrostNanticoke Last Frost: April 11 - 20
Zoom to Newmarket Last FrostNewmarket Last Frost: May 1 - 10
Zoom to Niagara Falls Last FrostNiagara Falls Last Frost: April 21 - 30
Zoom to North Bay Last FrostNorth Bay Last Frost: May 11 - 20
Zoom to North York Last FrostNorth York Last Frost: April 21 - 30
Zoom to Oakville Last FrostOakville Last Frost: May 1 - 10
Zoom to Omemee Last FrostOmemee Last Frost: May 1 - 10
Zoom to Orangeville Last FrostOrangeville Last Frost: May 1 - 10
Zoom to Orillia Last FrostOrillia Last Frost: May 1 - 10
Zoom to Oshawa Last FrostOshawa Last Frost: May 11 - 20
Zoom to Ottawa Last FrostOttawa Last Frost: May 1 - 10
Zoom to Owen Sound Last FrostOwen Sound Last Frost: May 1 - 10
Zoom to Paris Last FrostParis Last Frost: May 1 - 10
Zoom to Parry Sound Last FrostParry Sound Last Frost: May 21 - 31
Zoom to Pembroke Last FrostPembroke Last Frost: May 21 - 31
Zoom to Perth Last FrostPerth Last Frost: May 11 - 20
Zoom to Petawawa Last FrostPetawawa Last Frost: May 21 - 31
Zoom to Peterborough Last FrostPeterborough Last Frost: May 1 - 10
Zoom to Petrolia Last FrostPetrolia Last Frost: May 1 - 10
Zoom to Pickering Last FrostPickering Last Frost: May 11 - 20
Zoom to Port Colborne Last FrostPort Colborne Last Frost: April 11 - 20
Zoom to Powassan Last FrostPowassan Last Frost: May 11 - 20
Zoom to Prescott Last FrostPrescott Last Frost: May 1 - 10
Zoom to Quinte West Last FrostQuinte West Last Frost: May 1 - 10
Zoom to Renfrew Last FrostRenfrew Last Frost: May 11 - 20
Zoom to Richmond Hill Last FrostRichmond Hill Last Frost: May 1 - 10
Zoom to Saint Catharines Last FrostSaint Catharines Last Frost: April 21 - 30
Zoom to Sarnia Last FrostSarnia Last Frost: May 1 - 10
Zoom to Sault Ste Marie Last FrostSault Ste Marie Last Frost: May 21 - 31
Zoom to Scarborough Last FrostScarborough Last Frost: May 1 - 10
Zoom to Shelburne Last FrostShelburne Last Frost: May 1 - 10
Zoom to Simcoe Last FrostSimcoe Last Frost: April 21 - 30
Zoom to Smiths Falls Last FrostSmiths Falls Last Frost: May 11 - 20
Zoom to South River Last FrostSouth River Last Frost: May 11 - 20
Zoom to St. Thomas Last FrostSt. Thomas Last Frost: May 1 - 10
Zoom to Stoney Creek Last FrostStoney Creek Last Frost: May 1 - 10
Zoom to Stratford Last FrostStratford Last Frost: May 1 - 10
Zoom to Strathroy Last FrostStrathroy Last Frost: May 11 - 20
Zoom to Sturgeon Falls Last FrostSturgeon Falls Last Frost: May 11 - 20
Zoom to Sudbury Last FrostSudbury Last Frost: May 11 - 20
Zoom to Tecumseh Last FrostTecumseh Last Frost: April 21 - 30
Zoom to Temiskaming Shores Last FrostTemiskaming Shores Last Frost: June 1 - 10
Zoom to Thessalon Last FrostThessalon Last Frost: May 1 - 10
Zoom to Thorold Last FrostThorold Last Frost: April 21 - 30
Zoom to Thunder Bay Last FrostThunder Bay Last Frost: May 21 - 31
Zoom to Tillsonburg Last FrostTillsonburg Last Frost: April 21 - 30
Zoom to Timmins Last FrostTimmins Last Frost: June 1 - 10
Zoom to Toronto Last FrostToronto Last Frost: April 11 - 20
Zoom to Trenton Last FrostTrenton Last Frost: May 1 - 10
Zoom to Vaughan Last FrostVaughan Last Frost: April 21 - 30
Zoom to Walkerton Last FrostWalkerton Last Frost: May 11 - 20
Zoom to Wasaga Beach Last FrostWasaga Beach Last Frost: May 11 - 20
Zoom to Waterloo Last FrostWaterloo Last Frost: May 11 - 20
Zoom to Welland Last FrostWelland Last Frost: April 21 - 30
Zoom to Whitby Last FrostWhitby Last Frost: May 11 - 20
Zoom to Windsor Last FrostWindsor Last Frost: April 11 - 20
Zoom to Wingham Last FrostWingham Last Frost: May 11 - 20
Zoom to Woodstock Last FrostWoodstock Last Frost: May 1 - 10