Canadian Cities With Mildest Temperatures

Cities in Canada with the mildest temperatures are concentrated in the southwest corner of British Columbia. But there are other Canadian cities that also enjoy a generous amount of comfortable temperatures.

Here you'll find temperature data and rankings for the major cities in Canada with the mildest weather.

These cities have the greatest number of days a year with daytime temperatures that are just right, neither too hot nor too cold. There are also lists here of cities that enjoy the most warm nights and the longest frost-free season. (You can also see rankings for Canada's cities with the most uncomfortable temperatures.)

The southwestern BC cities of Victoria, Vancouver and Abbotsford jockey for the top spot on the lists of Canada's mildest cities. The three cities lead the pack with their frequent warm nights and long frost-free growing seasons. Compared with others in Canada, these BC cities also enjoy more days with high temperatures in the comfortable range of 10 to 30 degrees Celsius, (50 to 86 degrees Fahrenheit).

Overall, the mildest of Canada's large cities is arguably Victoria, BC. Besides having the greatest number of days with pleasant temperatures, Victoria also has the most nights where the minimum temperature goes no lower than 2 °C (35.6 °F). Victoria comes in second to Vancouver for the number of days between its last spring frost and first autumn frost.

Most of those warm days at the BC cities are at the cool end of the comfortable temperature spectrum, between 10 and 20 °C (50 to 68 °F). Yet generally, people prefer it a little warmer, at 20 to 26 degrees Celsius (68 to 79 degrees Fahrenheit).

It's in this enjoyably warm temperature range where cities in southern Ontario rise above the rest. Windsor, St. Catharines, London and Brantford take the top four spots on the list for having the most days in the twenties Celsius. Windsor and St. Catharines also join the ranks of top ten cities for the most nights with mild temperatures and the longest frost-free period.

The cities included in these rankings are Canada's largest metropolitan areas. These are the 33 urban regions that had over 100,000 people according to the 2011 census by Statistics Canada. The temperature data are averages of weather measurements made from 1981 to 2010.

Mildest Days

These cities have the most days with temperatures at the warm end of the comfort spectrum. Ontario cities dominate these top-ten ranks.

Total days a year on average with a maximum temperature between 20 and 30 °C (68 - 86 °F)

City	Days a Year
Windsor, Ontario	115
St. Catharines, Ontario	113
London, Ontario	113
Brantford, Ontario	112
Montréal, Quebec	108
Kitchener - Waterloo, Ontario	107
Guelph, Ontario	106
Toronto, Ontario	105
Peterborough, Ontario	105
Ottawa - Gatineau, Ontario	104

Rankings at the cooler end of the range for comfortable daytime temperatures are topped by British Columbian cities. Cities scattered across the country also join this list of ten.

Average days per year with maximum temperature of 10 to 20 °C (50 - 68 °F)

City	Days a Year
Victoria, British Columbia	189
Vancouver, British Columbia	175
Abbotsford, British Columbia	163
Halifax, Nova Scotia	120
Saint John, New Brunswick	119
Calgary, Alberta	116
St. John's, Newfoundland	113
Kelowna, British Columbia	108
Kingston, Ontario	103
Oshawa, Ontario	102

Most Warm Nights

Many of the cities with nice daytime temperatures also enjoy pleasant evenings. These ten major cities all have over 200 nights a year when the temperature never drops below 2 °C.

Average number of days annually when the minimum temperature is 2 °C (35.6 °F) or higher

City	Days a Year
Victoria, British Columbia	323
Vancouver, British Columbia	293
Abbotsford, British Columbia	275
Toronto, Ontario	234
Windsor, Ontario	221
Oshawa, Ontario	210
St. Catharines, Ontario	209
Hamilton, Ontario	206
Kelowna, British Columbia	206
Halifax, Nova Scotia	204

Longest Frost-Free Season

The frost-free growing season covers most of the year for some of Canada's major cities. These ten have the longest period between their last spring frost and the first fall frost.

Average length of frost-free season plus mean dates of when the no-frost period begins and ends

City	Days	Last Frost	First Frost
Vancouver, British Columbia	237	Mar 18	Nov 10
Victoria, British Columbia	211	Apr 7	Nov 5
Abbotsford, British Columbia	208	Apr 7	Nov 1
Toronto, Ontario	203	Apr 13	Nov 3
Windsor, Ontario	195	Apr 17	Oct 30
Halifax, Nova Scotia	182	Apr 30	Oct 31
St. Catharines, Ontario	179	Apr 24	Oct 21
Hamilton, Ontario	177	Apr 21	Oct 15
Oshawa, Ontario	168	Apr 29	Oct 13
Peterborough, Ontario	168	Apr 24	Oct 9