City comparison
Canadian Cities With the Longest Growing Seasons
This ranking compares Canadian cities by median frost-free season length — the window between typical last spring frost and first fall frost.
Longest season
Nanaimo
236 frost-free days · Very long season
Cities compared
178
Canadian cities with frost-date values
Best paired with
GDD
Long seasons and high heat are related, but not identical.
The ranking
Cities are ranked by median frost-free days. This is a season-length ranking, not a full crop-success ranking — GDD and crop heat needs still matter.
| Rank | City | Last spring frost | First fall frost | Frost-free days | Season read |
|---|---|---|---|---|---|
| #1 |
Nanaimo British Columbia, Canada |
03-19 | 11-10 | 236 | Very long season |
| #2 |
Vancouver British Columbia, Canada |
03-19 | 11-10 | 236 | Very long season |
| #3 |
Burnaby British Columbia, Canada |
03-19 | 11-10 | 236 | Very long season |
| #4 |
Port Alberni British Columbia, Canada |
04-01 | 11-06 | 219 | Very long season |
| #5 |
Courtenay British Columbia, Canada |
04-01 | 11-06 | 219 | Very long season |
| #6 |
Powell River British Columbia, Canada |
04-01 | 11-06 | 219 | Very long season |
| #7 |
Chilliwack British Columbia, Canada |
04-03 | 11-07 | 218 | Very long season |
| #8 |
Abbotsford British Columbia, Canada |
04-03 | 11-07 | 218 | Very long season |
| #9 |
Victoria British Columbia, Canada |
04-04 | 11-04 | 214 | Very long season |
| #10 |
Surrey British Columbia, Canada |
04-11 | 10-30 | 202 | Long season |
| #11 |
Windsor Ontario, Canada |
04-17 | 11-01 | 198 | Long season |
| #12 |
Whistler British Columbia, Canada |
04-19 | 10-28 | 192 | Long season |
| #13 |
Halifax Nova Scotia, Canada |
04-30 | 10-29 | 182 | Long season |
| #14 |
Leamington Ontario, Canada |
04-25 | 10-23 | 181 | Long season |
| #15 |
Yarmouth Nova Scotia, Canada |
04-28 | 10-24 | 179 | Longer Canadian season |
| #16 |
Toronto Ontario, Canada |
04-27 | 10-20 | 176 | Longer Canadian season |
| #17 |
Mississauga Ontario, Canada |
04-27 | 10-20 | 176 | Longer Canadian season |
| #18 |
Terrace British Columbia, Canada |
04-25 | 10-17 | 175 | Longer Canadian season |
| #19 |
Kamloops British Columbia, Canada |
04-25 | 10-12 | 170 | Longer Canadian season |
| #20 |
Kingston Ontario, Canada |
04-27 | 10-14 | 170 | Longer Canadian season |
| #21 |
100 Mile House British Columbia, Canada |
04-25 | 10-12 | 170 | Longer Canadian season |
| #22 |
Campbell River British Columbia, Canada |
04-27 | 10-13 | 169 | Longer Canadian season |
| #23 |
Whitby Ontario, Canada |
04-30 | 10-15 | 168 | Longer Canadian season |
| #24 |
Montreal Quebec, Canada |
04-29 | 10-14 | 168 | Longer Canadian season |
| #25 |
Oshawa Ontario, Canada |
04-30 | 10-15 | 168 | Longer Canadian season |
| #26 |
Nelson British Columbia, Canada |
04-28 | 10-13 | 168 | Longer Canadian season |
| #27 |
Terrebonne Quebec, Canada |
04-29 | 10-14 | 168 | Longer Canadian season |
| #28 |
London Ontario, Canada |
05-03 | 10-16 | 166 | Longer Canadian season |
| #29 |
Woodstock Ontario, Canada |
05-03 | 10-16 | 166 | Longer Canadian season |
| #30 |
Oakville Ontario, Canada |
05-01 | 10-12 | 164 | Longer Canadian season |
| #31 |
Brantford Ontario, Canada |
05-01 | 10-12 | 164 | Longer Canadian season |
| #32 |
Burlington Ontario, Canada |
05-01 | 10-12 | 164 | Longer Canadian season |
| #33 |
Hamilton Ontario, Canada |
05-01 | 10-12 | 164 | Longer Canadian season |
| #34 |
Milton Ontario, Canada |
05-01 | 10-12 | 164 | Longer Canadian season |
| #35 |
Richmond Hill Ontario, Canada |
05-03 | 10-13 | 163 | Longer Canadian season |
| #36 |
Markham Ontario, Canada |
05-03 | 10-13 | 163 | Longer Canadian season |
| #37 |
Aurora Ontario, Canada |
05-03 | 10-13 | 163 | Longer Canadian season |
| #38 |
Vaughan Ontario, Canada |
05-03 | 10-13 | 163 | Longer Canadian season |
| #39 |
Pickering Ontario, Canada |
05-03 | 10-13 | 163 | Longer Canadian season |
| #40 |
Newmarket Ontario, Canada |
05-03 | 10-13 | 163 | Longer Canadian season |
| #41 |
Cornwall Ontario, Canada |
04-28 | 10-07 | 162 | Longer Canadian season |
| #42 |
Belleville Ontario, Canada |
05-01 | 10-10 | 162 | Longer Canadian season |
| #43 |
Niagara Falls Ontario, Canada |
05-06 | 10-14 | 161 | Longer Canadian season |
| #44 |
St. Catharines Ontario, Canada |
05-06 | 10-14 | 161 | Longer Canadian season |
| #45 |
Welland Ontario, Canada |
05-06 | 10-14 | 161 | Longer Canadian season |
| #46 |
Penticton British Columbia, Canada |
04-30 | 10-08 | 161 | Longer Canadian season |
| #47 |
Vernon British Columbia, Canada |
04-28 | 10-06 | 161 | Longer Canadian season |
| #48 |
Salmon Arm British Columbia, Canada |
04-28 | 10-06 | 161 | Longer Canadian season |
| #49 |
Kelowna British Columbia, Canada |
04-30 | 10-08 | 161 | Longer Canadian season |
| #50 |
Ottawa Ontario, Canada |
04-30 | 10-06 | 159 | Longer Canadian season |
| #51 |
Gatineau Quebec, Canada |
04-30 | 10-06 | 159 | Longer Canadian season |
| #52 |
Granby Quebec, Canada |
05-06 | 10-08 | 155 | Longer Canadian season |
| #53 |
Saint-Jean-sur-Richelieu Quebec, Canada |
05-06 | 10-08 | 155 | Longer Canadian season |
| #54 |
Summerside Prince Edward Island, Canada |
05-17 | 10-18 | 154 | Longer Canadian season |
| #55 |
Charlottetown Prince Edward Island, Canada |
05-17 | 10-18 | 154 | Longer Canadian season |
| #56 |
Owen Sound Ontario, Canada |
05-12 | 10-10 | 151 | Longer Canadian season |
| #57 |
Rimouski Quebec, Canada |
05-16 | 10-14 | 151 | Longer Canadian season |
| #58 |
Sydney Nova Scotia, Canada |
05-22 | 10-20 | 151 | Longer Canadian season |
| #59 |
Guelph Ontario, Canada |
05-08 | 10-05 | 150 | Longer Canadian season |
| #60 |
Kitchener Ontario, Canada |
05-08 | 10-05 | 150 | Longer Canadian season |
| #61 |
Waterloo Ontario, Canada |
05-08 | 10-05 | 150 | Longer Canadian season |
| #62 |
Cambridge Ontario, Canada |
05-08 | 10-05 | 150 | Longer Canadian season |
| #63 |
Stratford Ontario, Canada |
05-08 | 10-05 | 150 | Longer Canadian season |
| #64 |
Chatham-Kent Ontario, Canada |
05-10 | 10-06 | 149 | Moderate season |
| #65 |
Quebec City Quebec, Canada |
05-10 | 10-05 | 148 | Moderate season |
| #66 |
Kenora Ontario, Canada |
05-10 | 10-02 | 145 | Moderate season |
| #67 |
St. John's Newfoundland and Labrador, Canada |
05-28 | 10-18 | 143 | Moderate season |
| #68 |
Orillia Ontario, Canada |
05-16 | 10-05 | 142 | Moderate season |
| #69 |
Barrie Ontario, Canada |
05-16 | 10-05 | 142 | Moderate season |
| #70 |
Gander Newfoundland and Labrador, Canada |
05-31 | 10-20 | 142 | Moderate season |
| #71 |
Spruce Grove Alberta, Canada |
05-07 | 09-25 | 141 | Moderate season |
| #72 |
St. Albert Alberta, Canada |
05-07 | 09-25 | 141 | Moderate season |
| #73 |
Drummondville Quebec, Canada |
05-12 | 09-27 | 138 | Moderate season |
| #74 |
Saint-Hyacinthe Quebec, Canada |
05-12 | 09-27 | 138 | Moderate season |
| #75 |
Trois-Rivières Quebec, Canada |
05-12 | 09-27 | 138 | Moderate season |
| #76 |
Repentigny Quebec, Canada |
05-12 | 09-27 | 138 | Moderate season |
| #77 |
Shawinigan Quebec, Canada |
05-12 | 09-27 | 138 | Moderate season |
| #78 |
Chibougamau Quebec, Canada |
05-17 | 10-02 | 138 | Moderate season |
| #79 |
North Bay Ontario, Canada |
05-15 | 09-29 | 137 | Moderate season |
| #80 |
Winkler Manitoba, Canada |
05-15 | 09-28 | 136 | Moderate season |
| #81 |
Morden Manitoba, Canada |
05-15 | 09-28 | 136 | Moderate season |
| #82 |
Fredericton New Brunswick, Canada |
05-14 | 09-27 | 136 | Moderate season |
| #83 |
Medicine Hat Alberta, Canada |
05-12 | 09-25 | 136 | Moderate season |
| #84 |
Elliot Lake Ontario, Canada |
05-18 | 10-01 | 136 | Moderate season |
| #85 |
Moncton New Brunswick, Canada |
05-19 | 10-02 | 136 | Moderate season |
| #86 |
Sudbury Ontario, Canada |
05-18 | 10-01 | 136 | Moderate season |
| #87 |
Miramichi New Brunswick, Canada |
05-23 | 10-05 | 135 | Moderate season |
| #88 |
Kentville Nova Scotia, Canada |
05-19 | 10-01 | 135 | Moderate season |
| #89 |
Sherbrooke Quebec, Canada |
05-19 | 09-30 | 134 | Moderate season |
| #90 |
Dryden Ontario, Canada |
05-17 | 09-28 | 134 | Moderate season |
| #91 |
Sioux Lookout Ontario, Canada |
05-17 | 09-28 | 134 | Moderate season |
| #92 |
Portage la Prairie Manitoba, Canada |
05-19 | 09-28 | 132 | Moderate season |
| #93 |
Peterborough Ontario, Canada |
05-16 | 09-24 | 131 | Moderate season |
| #94 |
Forestville Quebec, Canada |
05-20 | 09-27 | 130 | Moderate season |
| #95 |
Saguenay Quebec, Canada |
05-20 | 09-27 | 130 | Moderate season |
| #96 |
Bathurst New Brunswick, Canada |
05-20 | 09-26 | 129 | Moderate season |
| #97 |
Amherst Nova Scotia, Canada |
05-27 | 10-03 | 129 | Moderate season |
| #98 |
Saint John New Brunswick, Canada |
05-21 | 09-27 | 129 | Moderate season |
| #99 |
Cranbrook British Columbia, Canada |
05-18 | 09-23 | 128 | Moderate season |
| #100 |
Fort St. John British Columbia, Canada |
05-12 | 09-16 | 127 | Moderate season |
| #101 |
Flin Flon Manitoba, Canada |
05-21 | 09-24 | 126 | Moderate season |
| #102 |
Bridgewater Nova Scotia, Canada |
05-26 | 09-28 | 125 | Moderate season |
| #103 |
Red Lake Ontario, Canada |
05-25 | 09-27 | 125 | Moderate season |
| #104 |
Sault Ste. Marie Ontario, Canada |
05-28 | 09-29 | 124 | Moderate season |
| #105 |
Wawa Ontario, Canada |
05-28 | 09-29 | 124 | Moderate season |
| #106 |
Weyburn Saskatchewan, Canada |
05-17 | 09-17 | 123 | Moderate season |
| #107 |
Estevan Saskatchewan, Canada |
05-17 | 09-17 | 123 | Moderate season |
| #108 |
Brandon Manitoba, Canada |
05-18 | 09-18 | 123 | Moderate season |
| #109 |
Swift Current Saskatchewan, Canada |
05-19 | 09-19 | 123 | Moderate season |
| #110 |
Rouyn-Noranda Quebec, Canada |
05-25 | 09-25 | 123 | Moderate season |
| #111 |
Selkirk Manitoba, Canada |
05-23 | 09-22 | 122 | Moderate season |
| #112 |
Winnipeg Manitoba, Canada |
05-23 | 09-22 | 122 | Moderate season |
| #113 |
Steinbach Manitoba, Canada |
05-23 | 09-22 | 122 | Moderate season |
| #114 |
Brooks Alberta, Canada |
05-22 | 09-21 | 122 | Moderate season |
| #115 |
Dauphin Manitoba, Canada |
05-21 | 09-20 | 122 | Moderate season |
| #116 |
Lloydminster Alberta, Canada |
05-18 | 09-17 | 122 | Moderate season |
| #117 |
Fort Nelson British Columbia, Canada |
05-15 | 09-14 | 122 | Moderate season |
| #118 |
Yorkton Saskatchewan, Canada |
05-20 | 09-18 | 121 | Moderate season |
| #119 |
The Pas Manitoba, Canada |
05-24 | 09-22 | 121 | Moderate season |
| #120 |
Quesnel British Columbia, Canada |
05-22 | 09-19 | 120 | Moderate season |
| #121 |
Cold Lake Alberta, Canada |
05-19 | 09-16 | 120 | Moderate season |
| #122 |
Airdrie Alberta, Canada |
05-21 | 09-18 | 120 | Moderate season |
| #123 |
Cochrane Alberta, Canada |
05-21 | 09-18 | 120 | Moderate season |
| #124 |
Calgary Alberta, Canada |
05-21 | 09-18 | 120 | Moderate season |
| #125 |
Okotoks Alberta, Canada |
05-21 | 09-18 | 120 | Moderate season |
| #126 |
Yellowknife Northwest Territories, Canada |
05-24 | 09-21 | 120 | Moderate season |
| #127 |
Saskatoon Saskatchewan, Canada |
05-19 | 09-15 | 119 | Shorter season |
| #128 |
Lethbridge Alberta, Canada |
05-21 | 09-17 | 119 | Shorter season |
| #129 |
Humboldt Saskatchewan, Canada |
05-19 | 09-15 | 119 | Shorter season |
| #130 |
Whitecourt Alberta, Canada |
05-20 | 09-15 | 118 | Shorter season |
| #131 |
Edmundston New Brunswick, Canada |
05-21 | 09-15 | 117 | Shorter season |
| #132 |
Camrose Alberta, Canada |
05-20 | 09-14 | 117 | Shorter season |
| #133 |
Wetaskiwin Alberta, Canada |
05-20 | 09-14 | 117 | Shorter season |
| #134 |
Truro Nova Scotia, Canada |
06-01 | 09-25 | 116 | Shorter season |
| #135 |
Williams Lake British Columbia, Canada |
05-21 | 09-14 | 116 | Shorter season |
| #136 |
Melfort Saskatchewan, Canada |
05-23 | 09-15 | 115 | Shorter season |
| #137 |
Peace River Alberta, Canada |
05-21 | 09-13 | 115 | Shorter season |
| #138 |
Baie-Comeau Quebec, Canada |
05-29 | 09-21 | 115 | Shorter season |
| #139 |
Regina Saskatchewan, Canada |
05-23 | 09-14 | 114 | Shorter season |
| #140 |
Prince Albert Saskatchewan, Canada |
05-24 | 09-15 | 114 | Shorter season |
| #141 |
Smithers British Columbia, Canada |
05-26 | 09-17 | 114 | Shorter season |
| #142 |
Mackenzie British Columbia, Canada |
05-26 | 09-17 | 114 | Shorter season |
| #143 |
Slave Lake Alberta, Canada |
05-26 | 09-16 | 113 | Shorter season |
| #144 |
Red Deer Alberta, Canada |
05-22 | 09-12 | 113 | Shorter season |
| #145 |
Lacombe Alberta, Canada |
05-22 | 09-12 | 113 | Shorter season |
| #146 |
Chapleau Ontario, Canada |
05-29 | 09-18 | 112 | Shorter season |
| #147 |
Grande Prairie Alberta, Canada |
05-21 | 09-10 | 112 | Shorter season |
| #148 |
North Battleford Saskatchewan, Canada |
05-26 | 09-13 | 110 | Shorter season |
| #149 |
Val-d'Or Quebec, Canada |
05-31 | 09-16 | 108 | Shorter season |
| #150 |
Thunder Bay Ontario, Canada |
05-31 | 09-16 | 108 | Shorter season |
| #151 |
Amos Quebec, Canada |
05-31 | 09-16 | 108 | Shorter season |
| #152 |
Prince George British Columbia, Canada |
05-22 | 09-07 | 108 | Shorter season |
| #153 |
Edmonton Alberta, Canada |
05-27 | 09-10 | 106 | Shorter season |
| #154 |
Leduc Alberta, Canada |
05-27 | 09-10 | 106 | Shorter season |
| #155 |
Cochrane Ontario, Canada |
06-04 | 09-17 | 105 | Shorter season |
| #156 |
Kapuskasing Ontario, Canada |
06-04 | 09-17 | 105 | Shorter season |
| #157 |
Moosonee Ontario, Canada |
06-04 | 09-17 | 105 | Shorter season |
| #158 |
New Glasgow Nova Scotia, Canada |
06-10 | 09-22 | 104 | Shorter season |
| #159 |
Matagami Quebec, Canada |
06-18 | 09-30 | 104 | Shorter season |
| #160 |
Revelstoke British Columbia, Canada |
05-31 | 09-11 | 103 | Shorter season |
| #161 |
Kindersley Saskatchewan, Canada |
05-30 | 09-10 | 103 | Shorter season |
| #162 |
Corner Brook Newfoundland and Labrador, Canada |
06-10 | 09-20 | 102 | Shorter season |
| #163 |
Swan River Manitoba, Canada |
06-03 | 09-13 | 102 | Shorter season |
| #164 |
Fort McMurray Alberta, Canada |
05-29 | 09-07 | 101 | Shorter season |
| #165 |
High Level Alberta, Canada |
05-30 | 09-06 | 99 | Shorter season |
| #166 |
Fort Vermilion Alberta, Canada |
05-30 | 09-06 | 99 | Shorter season |
| #167 |
Sept-Îles Quebec, Canada |
06-07 | 09-13 | 98 | Shorter season |
| #168 |
Meadow Lake Saskatchewan, Canada |
05-30 | 09-04 | 97 | Shorter season |
| #169 |
Timmins Ontario, Canada |
06-07 | 09-07 | 92 | Shorter season |
| #170 |
Hinton Alberta, Canada |
06-04 | 09-04 | 92 | Shorter season |
| #171 |
Edson Alberta, Canada |
06-04 | 09-04 | 92 | Shorter season |
| #172 |
Whitehorse Yukon, Canada |
06-03 | 08-28 | 86 | Shorter season |
| #173 |
La Ronge Saskatchewan, Canada |
06-15 | 09-02 | 79 | Shorter season |
| #174 |
Thompson Manitoba, Canada |
06-14 | 08-28 | 75 | Shorter season |
| #175 |
Rocky Mountain House Alberta, Canada |
06-13 | 08-25 | 73 | Shorter season |
| #176 |
Hay River Northwest Territories, Canada |
06-20 | 08-24 | 65 | Shorter season |
| #177 |
Canmore Alberta, Canada |
06-19 | 08-23 | 65 | Shorter season |
| #178 |
Banff Alberta, Canada |
06-19 | 08-23 | 65 | Shorter season |
What this ranking means
A longer frost-free season usually gives gardeners more room, but it does not always mean more heat. Coastal cities can have long frost-free windows while still accumulating less warm-season GDD than hotter inland locations.
Compare with Canadian Cities With the Highest Growing Degree Days and the full Frost Dates by City reference.
Methodology
Canadian cities are ranked by median frost-free days between the typical last spring frost and first fall frost. Ties use remaining base-50 GDD as a secondary signal.
A longer frost-free season does not guarantee more heat. Cool coastal locations can have long frost-free windows but modest heat accumulation.
Download: longest growing seasons JSON.