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Weather

With our cold winters, hot summers and everything in-between it is not surprising that the weather is a national preoccupation of Canadians. Click on the map below to explore our interesting and challenging weather.

Superlatives: Weather Chicoutimi St John's Corner Brook London Windsor Winnipeg Thompson Yellowknife Snag Prince Rupert Lakelse Lake Victoria Estevan Medicine Hat Pincher Creek Kelowna Kamloops Vancouver
Victoria
Victoria (photo of Victoria) is the city with the lowest annual average snowfall: 47 centimetres.
Lakelse Lake
The heaviest snowfall in one day was 118.1 centimetres at Lakelse Lake, January 17, 1974.
Winnipeg
Winnipeg has the sunniest winters with the most hours of sunshine during December, January and February: 358 hours.
Windsor
The most humid city is Windsor with the highest average vapour pressure, 1.78 kilopascal, during June, July and August.
Chicoutimi
Chicoutimi has the greatest number of days per year with blowing snow: 37 days.
Corner Brook
Corner Brook is the snowiest city with an annual average snowfall: 422 centimetres. Note that several smaller places also in Newfoundland and Labrador, Churchill Falls and Wabush, have higher annual snow fall.
Vancouver
The city with fewest days below freezing is Vancouver (photo of Vancouver), which has an average of 51 days per year with freezing temperatures.
Yellowknife
The city with the coldest winters, according to the average nighttime temperature during December, January and February, is Yellowknife (photo of Yellowknife): -29.9 degrees Celsius. It is also the coldest city with a mean annual temperature of -5.4 degrees Celsius and it has the sunniest summers with the most hours of sunshine during June, July and August: 1037 hours.
Thompson
The city with the shortest frost-free period is Thompson, with 64 days.
Kamloops
Kamloops has the warmest summers with an average daytime temperature of 27.2 degrees Celsius during June, July and August.
Estevan
The sunshine capital is Estevan with the greatest number of hours of sunshine per year: 2500 hours. Estevan also has the highest annual number of hours per year with clear skies (between zero and two-tenths sky cover): 2979 hours.
St. John's
St. John's (photo of St. John's) is the city with the greatest number of days per year with fog: 121 days. It is the windiest city, with the greatest average annual wind speed being 24 kilometers per hour; and has the greatest number of days per year of freezing precipitation: 38 days.
Prince Rupert
Prince Rupert is the cloudiest place with 6123 hours per year with overcast skies (between eight-tenths and total sky cover). It also has the fewest thunderstorms days, 3 per year. Prince Rupert is also the wettest city, with a total annual precipitation of 2552 millimetres.
London
London is the city which has the most days per year with thunderstorms: 36 days.
Kelowna
Kelowna has the calmest winds with the greatest percentage of wind observations per year of calm conditions (39%).
Snag
The lowest temperature recorded in Canada is -63 degrees Celsius at Snag on February 3, 1947.
Pincher Creek
The most extreme change in temperature took place in January 1962 in Pincher Creek when a warm, dry wind known as a chinook, brought the temperature up from -19 degrees Celsius to 22 degrees Celsius in an hour.
Medicine Hat
Medicine Hat is the driest city with 271 days without measurable precipitation.
Source: Phillips, D. 1990. The Climate of Canada. Catalogue No. En56-1/1990E. Ottawa: Minister of Supply and Services of Canada.
 
Date modified: 2004-04-08 Top of Page Important Notices