Canada Frost Charts
Here you will find Canada's frost dates listed by Province & City gardening zone.
Information from Environment Canada.
| Province Alberta |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Athabaska | June 1 | August 29 | 88 |
| Calgary | May 23 | September 15 | 114 |
| Edmonton | May 7 | September 23 | 138 |
| Grande Prairie | May 18 | September 13 | 117 |
| Lethbridge | May 17 | September 18 | 123 |
| Medicine Hat | May 16 | September 22 | 128 |
| Peace River | May 26 | September 3 | 99 |
| Red Deer | May 25 | September 9 | 106 |
| Province British Columbia |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Abbotsford | April 24 | October 18 | 177 |
| Chilliwack | April 6 | November 9 | 216 |
| Dawson Creek | June 5 | August 29 | 84 |
| Kamloops | May 1 | October 5 | 156 |
| Kelowna | May 19 | September 20 | 123 |
| Nanaimo | April 28 | October 17 | 171 |
| Nelson | May 4 | October 13 | 159 |
| Port Alberni | May 8 | October 15 | 159 |
| Prince George | June 4 | September 2 | 91 |
| Prince Rupert | May 9 | October 13 | 156 |
| Vancouver | March 28 | November 5 | 221 |
| Victoria | April 19 | November 5 | 200 |
| Province Manitoba |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Brandon | May 27 | September 10 | 105 |
| Lynn Lake | June 8 | September 6 | 89 |
| The Pas | May 27 | September 17 | 112 |
| Thompson | June 15 | August 16 | 61 |
| Winnipeg | May 25 | September 22 | 119 |
| Province New Brunswick |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Bathurst | May 19 | September 26 | 129 |
| Edmundston | May 28 | September 18 | 112 |
| Fredericton | May 20 | September 22 | 124 |
| Moncton | May 24 | September 27 | 125 |
| Saint John | May 18 | October 4 | 139 |
| Province Newfoundland |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Corner Brook | May 22 | October 12 | 142 |
| Gander | June 32 | October 5 | 123 |
| Grand Falls | June 2 | September 26 | 115 |
| St Johns | June 2 | October 12 | 131 |
| Province Northwest Territory |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Aklavik | June 13 | August 31 | 76 |
| Fort Simpson | June 3 | August 24 | 81 |
| Yellowknife | May 27 | September 15 | 110 |
| Province Novia Scotia |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Halifax | May 6 | October 20 | 166 |
| Kentville | May 16 | October 5 | 141 |
| Sydney | May 24 | October 13 | 141 |
| Truro | May 30 | September 21 | 113 |
| Yarmouth | May 1 | October 18 | 169 |
| Province Ontario |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Barrie | May 26 | September 16 | 112 |
| Hamilton | April 29 | October 15 | 168 |
| Kapuskasing | June 12 | September 8 | 87 |
| Kingston | May 2 | October 10 | 160 |
| Kitchener | May 11 | September 29 | 139 |
| London | May 9 | October 8 | 151 |
| Ottawa | May 6 | October 5 | 151 |
| Owen Sound | May 12 | October 15 | 155 |
| Peterborough | May 18 | September 20 | 124 |
| Sudbury | May 17 | September 25 | 130 |
| Thunder Bay | June 1 | September 15 | 105 |
| Timmins | June 8 | September 6 | 89 |
| Toronto | May 9 | October 6 | 149 |
| Windsor | April 25 | October 22 | 179 |
| Province Prince Edward Island |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Charlottetown | May 17 | October 14 | 150 |
| Summerside | May 9 | October 19 | 162 |
| Tignish | May 23 | October 9 | 138 |
| Province Quebec |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Baie Comeau | May 28 | September 15 | 109 |
| Chicoutimi | May 17 | September 30 | 133 |
| Montreal | May 3 | October 7 | 156 |
| Quebec | May 13 | September 29 | 139 |
| Rimouski | May 13 | September 30 | 139 |
| Sherbrooke | June 1 | September 10 | 100 |
| Tadoussac | May 13 | October 2 | 141 |
| Thetford Mines | May 28 | September 14 | 106 |
| Trois-Rivieres | May 19 | September 23 | 124 |
| Province Saskatchewan |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Moose Jaw | May 20 | September 18 | 120 |
| North Battleford | May 19 | September 17 | 120 |
| Prince Albert | June 2 | September 4 | 93 |
| Regina | May 21 | September 10 | 111 |
| Saskatoon | May 21 | September 15 | 116 |
| Weyburn | May 22 | September 12 | 112 |
| Yorkton | May 23 | September 11 | 110 |
| Province Yukon Territory |
Last Frost Date | First Frost Date | Minimum Number frost-free days |
| Dawson | June 13 | August 17 | 62 |
| Watson Lake | June 2 | September 4 | 91 |