Calgary
December
Weather in Calgary for December 2025
Your guide to Calgary weather in December - trends and predictions
The climate of Calgary in December is quite snowy, averaging 12 snowy days.
In general, the average temperature in Calgary at the beginning of December is -2.3 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of -4.9 °C by the end of December.
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Snow Forecast ❄️
Temperatures
More
17
Dry days
2
Rainy days
12
Snow days
-5°/-13°
Temperatures
16 km/h
Avg max wind
82 %
Avg humidity
Calgary in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  -5° | 2  -2° | 3 -1° | 4  -0° | 5 -2° | 6 -5° | |
| 7  -1° | 8 1° | 9 -3° | 10  -3° | 11 -1° | 12  -3° | 13 -4° |
| 14 -3° | 15 -3° | 16 -4° | 17 -6° | 18 -7° | 19 -7° | 20 -7° |
| 21 -6° | 22  -5° | 23 -6° | 24 -4° | 25 -5° | 26 -5° | 27 -6° |
| 28 -4° | 29 -6° | 30 -4° | 31 -4° |
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Temperatures trend during December in Calgary
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. | Overcast | -5° /-12° | 1.6 mm | 0.5 cm | |
| 2 Dec. | Patchy moderate snow | -2° /-13° | 1.4 mm | 0.6 cm | |
| 3 Dec. | Overcast | -1° /-10° | 0.1 mm | 0 cm | |
| 4 Dec. | Light freezing rain | 0° /-8° | 0.3 mm | 0 cm | |
| 5 Dec. | Light freezing rain | -2° /-10° | 0.7 mm | 0 cm | |
| 6 Dec. | Overcast | -5° /-11° | 1.5 mm | 0.5 cm | |
| 7 Dec. | Sunny | -1° /-11° | 2 mm | 1.3 cm | |
| 8 Dec. | Overcast | 1° /-7° | 0 mm | 0 cm | |
| 9 Dec. | Overcast | -3° /-11° | 0.1 mm | 0.1 cm | |
| 10 Dec. | Cloudy | -3° /-11° | 0.1 mm | 0.1 cm | |
| 11 Dec. | Overcast | -1° /-11° | 0.5 mm | 0.4 cm | |
| 12 Dec. | Partly cloudy | -3° /-11° | 0.7 mm | 0.3 cm | |
| 13 Dec. | Overcast | -4° /-13° | 0.7 mm | 0.1 cm | |
| 14 Dec. | Overcast | -3° /-12° | 0.8 mm | 0 cm | |
| 15 Dec. | Overcast | -3° /-11° | 0 mm | 0 cm | |
| 16 Dec. | Overcast | -4° /-12° | 0.4 mm | 0 cm | |
| 17 Dec. | Overcast | -6° /-15° | 0.4 mm | 0 cm | |
| 18 Dec. | Overcast | -7° /-15° | 1.7 mm | 1 cm | |
| 19 Dec. | Overcast | -7° /-15° | 0 mm | 0 cm | |
| 20 Dec. | Sunny | -7° /-14° | 0.2 mm | 0 cm | |
| 21 Dec. | Sunny | -6° /-14° | 1.6 mm | 1 cm | |
| 22 Dec. | Moderate snow | -5° /-14° | 4.9 mm | 2.7 cm | |
| 23 Dec. | Light freezing rain | -6° /-16° | 0.8 mm | 0.2 cm | |
| 24 Dec. | Overcast | -4° /-13° | 0 mm | 0 cm | |
| 25 Dec. | Overcast | -5° /-12° | 0.1 mm | 0 cm | |
| 26 Dec. | Light freezing rain | -5° /-12° | 0.4 mm | 0 cm | |
| 27 Dec. | Overcast | -6° /-13° | 0.9 mm | 0 cm | |
| 28 Dec. | Cloudy | -4° /-13° | 1 mm | 0.3 cm | |
| 29 Dec. | Partly cloudy | -6° /-14° | 0 mm | 0 cm | |
| 30 Dec. | Partly cloudy | -4° /-12° | 0 mm | 0 cm | |
| 31 Dec. | Overcast | -4° /-12° | 0 mm | 0 cm | |
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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.
Calgary in December - FAQ
What are the expected maximum and minimum temperatures in Calgary during December?
Brace for cold days with temperatures not exceeding -5° 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 22.2 mm across approximately 2 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 8.366 cm during December, occurring over 12 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 ❄️
December rainfall patterns in Calgary
Explore the daily rainfall trends and prepare for Calgarys December weather 💧
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