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Canada weather

Weather in Calgary for December 2025

Your guide to Calgary weather in December - trends and predictions

    Snow Forecast ❄️

  • The climate of Calgary in December is quite snowy, averaging 13 snowy days.
    According to Calgary snow forecast for December 2025, 5 snowy days are expected in the next 2 weeks. The closest date with snow is Wednesday, 17 December.

    • Temperatures

  • Until now, December 2025 in Calgary has been nearly identical to the historical average, with a temperature of -2.1 °C (showing only a slight deviation of -0.1 °C).

  • The forecast for the next days in Calgary predicts a temperature of -8.6 °C, which is cooler than the historical average.

  • In general, the average temperature in Calgary at the beginning of December is -2.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of -6.3 °C by the end of December.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
18
Dry days
Average rainy days
0
Rainy days
Average snowy days
13
Snow days
Average temperatures
-4°/-12°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Calgary Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
-4°
2
Overcast
-2°
3
Overcast
-1°
4
Light freezing rain
-0°
5
Mist
-2°
6
Overcast
-5°
7
Sunny
-1°
8
Overcast
1°
9
Overcast
-2°
10
Cloudy
-2°
11
Overcast
-1°
12
Overcast
-5°
13
Overcast
-4°
14
Partly cloudy
8°
15
Overcast
4°
16
Sunny
0°
17
Light freezing rain
-2°
18
Partly cloudy
-5°
19
Light freezing rain
-19°
20
Partly cloudy
-13°
21
Overcast
-17°
22
Moderate snow
-20°
23
Freezing fog
-15°
24
Freezing fog
-16°
25
Freezing fog
-14°
26
Cloudy
-4°
27
Sunny
-8°
28
Cloudy
-4°
29
Partly cloudy
-6°
30
Partly cloudy
-4°
31
Overcast
-4°

Temperatures trend during December in Calgary

See the weather trend as well as the moving average line

December weather in Calgary day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Overcast
Overcast
 -4° /-11° 1.2 mm 0.4 cm
2 Dec. Overcast
Overcast
 -2° /-11° 1.1 mm 0.5 cm
3 Dec. Overcast
Overcast
 -1° /-10° 0.1 mm 0 cm
4 Dec. Light freezing rain
Light freezing rain
 0° /-7° 0.2 mm 0 cm
5 Dec. Mist
Mist
 -2° /-10° 0.5 mm 0 cm
6 Dec. Overcast
Overcast
 -5° /-11° 1.8 mm 0.8 cm
7 Dec. Sunny
Sunny
 -1° /-11° 1.6 mm 1 cm
8 Dec. Overcast
Overcast
 1° /-7° 0 mm 0 cm
9 Dec. Overcast
Overcast
 -2° /-11° 0.1 mm 0.1 cm
10 Dec. Cloudy
Cloudy
 -2° /-11° 0.1 mm 0.1 cm
11 Dec. Overcast
Overcast
 -1° /-12° 2.8 mm 2 cm
12 Dec. Overcast
Overcast
 -5° /-12° 0.8 mm 0.4 cm
13 Dec. Overcast
Overcast
 -4° /-14° 1.1 mm 0.5 cm
14 Dec. Partly cloudy
Partly cloudy
 8° /-6° 0 mm 0 cm
15 Dec. Overcast
Overcast
 4° /-2° 0 mm 0 cm
16 Dec. Sunny
Sunny
 0° /-6° 0 mm 0 cm
17 Dec. Light freezing rain
Light freezing rain
 -2° /-18° 0.4 mm 0 cm
18 Dec. Partly cloudy
Partly cloudy
 -5° /-18° 0 mm 0 cm
19 Dec. Light freezing rain
Light freezing rain
 -19° /-20° 0.4 mm 0.3 cm
20 Dec. Partly cloudy
Partly cloudy
 -13° /-21° 0 mm 0 cm
21 Dec. Overcast
Overcast
 -17° /-20° 0.1 mm 0 cm
22 Dec. Moderate snow
Moderate snow
 -20° /-21° 1 mm 0.7 cm
23 Dec. Freezing fog
Freezing fog
 -15° /-22° 0.3 mm 0.2 cm
24 Dec. Freezing fog
Freezing fog
 -16° /-24° 0 mm 0 cm
25 Dec. Freezing fog
Freezing fog
 -14° /-22° 0 mm 0 cm
26 Dec. Cloudy
Cloudy
 -4° /-20° 0 mm 0 cm
27 Dec. Sunny
Sunny
 -8° /-16° 0 mm 0 cm
28 Dec. Cloudy
Cloudy
 -4° /-13° 1 mm 0.3 cm
29 Dec. Partly cloudy
Partly cloudy
 -6° /-14° 0 mm 0 cm
30 Dec. Partly cloudy
Partly cloudy
 -4° /-12° 0 mm 0 cm
31 Dec. Overcast
Overcast
 -4° /-12° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Calgary in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Calgary forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Calgary in December - FAQ

What are the expected maximum and minimum temperatures in Calgary during December?
Brace for cold days with temperatures not exceeding -4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Calgary during December?
In December, Calgary can expect light to moderate rainfall, totaling 22.8 mm across approximately 0 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Calgary in December 2025?
Calgary experiences an average snowfall of 9.128 cm during December, occurring over 13 days.
What are the typical wind conditions in Calgary during December?
The average wind speed in Calgary during December is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

Calgary snow forecast December 2025

Track daily snowfall levels and discover Calgary’s snowy potential this December ❄️
On average, Calgary sees 13 snowy days during December, with approximately 9.1 cm of total snowfall.

December rainfall patterns in Calgary

Explore the daily rainfall trends and prepare for Calgarys December weather 💧

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Get accurate weather forecasts for Calgary, located at latitude 51.05 and longitude -114.085. Stay updated with localized weather information tailored for Calgary.

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