December weather forecast and climate
Calgary, Canada

The magnificent skyscrapers of the city of Calgary, Canada
The magnificent skyscrapers of the city of Calgary, Canada

Weather in December

The first month of the winter, December, is also a subzero cold month in Calgary, Canada, with average temperature fluctuating between -4.8°C (23.4°F) and -11.5°C (11.3°F).

Temperature

December is the coldest month, with an average high-temperature of -4.8°C (23.4°F) and an average low-temperature of -11.5°C (11.3°F).

Humidity

In Calgary, the average relative humidity in December is 80%.

Rainfall

In Calgary, during 3 rainfall days, 10mm (0.39") of precipitation is typically accumulated. In Calgary, during the entire year, the rain falls for 94.1 days and collects up to 288mm (11.34") of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Calgary, during December, snow falls for 12.2 days and regularly aggregates up to 78mm (3.07") of snow. In Calgary, during the entire year, snow falls for 75.3 days, and aggregates up to 629mm (24.76") of snow.

Daylight

With an average of 8h of daylight, December has the shortest days of the year.

Sunshine

December has the least sunshine of the year, with an average of 5.2h of sunshine.

UV index

In December, the average daily maximum UV index in Calgary is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 2 interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
[Resources]

FAQ

What is the coldest month in Calgary?

The coldest month is December, with an average high-temperature of -4.8°C (23.4°F) and an average low-temperature of -11.5°C (11.3°F).

What is the average humidity in December in Calgary?

In Calgary, Canada, the average relative humidity in December is 80%.

How much does it rain in Calgary in December?

In December, in Calgary, the rain falls for 3 days. Throughout December, 10mm (0.39") of precipitation is accumulated.

How many days does it snow in December in Calgary?

In Calgary, Canada, in December, snow falls for 12.2 days, with typically accumulated 78mm (3.07") of snow.

What is the month with the shortest days in Calgary?

The month with the shortest days in Calgary, Canada, is December, with an average of 8h of daylight.

How many hours of daylight does Calgary have in December?

The average length of the day in December in Calgary is 8h.

What is the month with the least sunshine in Calgary?

The month with the least sunshine is December, with an average of 5.2h of sunshine.

How many hours of sunshine does Calgary have in December?

The average sunshine in December is 5.2h.

What is the UV index reading in December in Calgary?

In December, the average daily maximum UV index in Calgary is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV radiation.

Average temperature in December
Calgary, Canada

Average temperature in December - Calgary, Canada
  • Average high temperature in December: -4.8°C

The warmest month (with the highest average high temperature) is August (22.9°C).
The month with the lowest average high temperature is December (-4.8°C).

  • Average low temperature in December: -11.5°C

The month with the highest average low temperature is July (10°C).
The coldest month (with the lowest average low temperature) is December (-11.5°C).

[Resources]

Average pressure in December
Calgary, Canada

Average pressure in December - Calgary, Canada
  • Average pressure in December: 1019mbar

The month with the highest atmospheric pressure is February (1019.3mbar).
The month with the lowest atmospheric pressure is June (1010.8mbar).

[Resources]

Average wind speed in December
Calgary, Canada

Average wind speed in December - Calgary, Canada
  • Average wind speed in December: 12km/h

The windiest month (with the highest average wind speed) is January (13.1km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).

[Resources]

Average humidity in December
Calgary, Canada

Average humidity in December - Calgary, Canada
  • Average humidity in December: 80%

Months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is September (59%).

[Resources]

Average rainfall in December
Calgary, Canada

Average rainfall in December - Calgary, Canada
  • Average rainfall in December: 10mm

The wettest month (with the highest rainfall) is June (65mm).
The driest month (with the least rainfall) is January (9mm).

[Resources]

Average rainfall days in December
Calgary, Canada

Average rainfall days in December - Calgary, Canada
  • Average rainfall days in December: 3 days

The month with the highest number of rainy days is June (17 days).
The month with the least rainy days is November (2.5 days).

[Resources]

Average snowfall in December
Calgary, Canada

Average snowfall in December - Calgary, Canada
  • Average snowfall in December: 78mm

The month with the highest snowfall is April (102mm).
Months with the least snowfall are July and August (0mm).

[Resources]

Average snowfall days in December
Calgary, Canada

Average snowfall days in December - Calgary, Canada
  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is February (12.9 days).
Months with the least snowfall days are July and August (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Calgary, Canada

Average daylight in December / Average sunshine in December - Calgary, Canada
  • Average daylight in December: 8h

The month with the longest days is June (Average daylight: 16.5h).
The month with the shortest days is December (Average daylight: 8h).

  • Average sunshine in December: 5.2h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 5.2h).

[Resources]

Average sunshine days in December
Calgary, Canada

Average sunshine days in December - Calgary, Canada
  • Average sunshine days in December: 19.3 days

The month with the most sunshine days is October (22.1 days).
The month with the least sunshine days is June (10.7 days).

[Resources]

Average UV index in December
Calgary, Canada

Average UV index in December - Calgary, Canada
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).

[Resources]

Average cloud cover in December
Calgary, Canada

Average cloud cover in December - Calgary, Canada
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 24).

[Resources]

Average visibility in December
Calgary, Canada

Average visibility in December - Calgary, Canada
  • Average visibility in December: 9km

Months with the highest visibility are June, August and September (10km).
Months with the lowest visibility are January, February, March, April, May, July, October, November and December (9km).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location