CanadaAverage weather for Calgary in December
It's cold in December in Calgary with an average temperature of -1°C. Temperatures this month range from a low of -6°C to a high of 3°C. At night, you can expect temperatures between -15°C and -5°C.
Start of December
The month of December starts in Calgary with really cold temps, averaging around 2°C during the day and nights dipping to about -7°C. There’s little chance of precipitation. The weather’s mostly sunny and dry. Wear a heavy winter coat, sweater, long pants, beanie, and gloves.
Mid December
By mid-December, daytime temps drop to around -0°C, with nights around -9°C. Not much precipitation expected during this period. It’s mostly dry and sunny. Wear a heavy winter coat, sweater, long pants, beanie, and gloves.
End of December
By the end of December, the average daytime temperature in Calgary is around -3°C, while nighttime temps are about -12°C. A shower might pop up, but overall, the weather will be dry and sunny. Wear a heavy winter coat, sweater, long pants, beanie, and gloves.
In December, there is an average of 40 mm of precipitation, spread over 7 days. Of the total precipitation, about 11 cm falls as snow in December. The wind speed is around 4 Bft, mostly coming from the Southwest.
Calgary in December |
New York | ||
|---|---|---|---|
 Average temperature |
-1°C | 9°C | |
 Max. temperature |
3°C | 12°C | |
| Min. temperature |
-6°C | -5°C | |
 Total precipitation |
40 mm | 133 mm | |
| Rainy days |
7 days | 17 days | |
 Total snowfall |
11 cm | 9,7 cm | |
| Snowy days |
5 days | 3 days | |
November
UV index
The UV index is a maximum of 2 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.
Temperature records
With 17°C in 2023, Calgary reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was -29°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of -33°C to a highest value of 6°C.
Check out the climate of Calgary for all months and discover the best travel time
Curious about the weather in other parts of Canada? Check out the climate and weather for spots like Vancouver, Toronto, Niagara Falls, or explore other destinations in Canada.
Daily Temperature in December in Calgary
This chart shows the average daily high and low temperatures in December for Calgary, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in December in Calgary
The chart below shows the average daily precipitation in December for Calgary, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for December, you can expect about 7 days of precipitation in Calgary.
Daily Snowfall in December in Calgary
This chart shows the average daily snowfall in December in Calgary, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in December.
Daily UV index in December in Calgary
This chart shows the average daily UV index in December in Calgary, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in Calgary over the years
This chart shows the average temperature in December in Calgary, measured in degrees Celsius, over the past few years.
Total precipitation in December in Calgary over the years
This chart shows the average precipitation in December in Calgary, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in December in Calgary per year
This chart shows the average snowfall in December in Calgary, measured in centimeters, over the past few years.
Daily weather in December for Calgary
Click on any day in December to get detailed info about the usual weather on that day in Calgary. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December in Calgary
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Average weather in Calgary by month
Click on a month below to see detailed weather info for Calgary. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
