Calgary weather in December
Temperature, rain and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Poor
Best time to visit: June – September
What is the weather like in Calgary in December?
In December, Calgary is freezing cold: daytime highs average −3 °C, and nights often drop below freezing (−13 °C). The sun is scarce, with only about 4 hours a day. Precipitation, often as snow, falls on about 4 days, totalling 15 mm. Snow falls on about 4 days. All in all, December is not an ideal month for a holiday in Calgary.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 31 | 31 | 33 |
| Day | 2° | −3° | −3° |
| Night | −7° | −13° | −13° |
| Sun | 4 h | 4 h | 4 h |
| Rain days | 5 | 4 | 4 |
More details for December
- Daylight
- 7 h 57 min09:33 – 17:30
- UV index
- 0 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 62 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 4 days1 cm or more of fresh snowAll months
- Time zone
- UTC−6America/Edmonton
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %8 %
- Few rainy daysweight 30 %98 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Warm jacket
- Hat, scarf & gloves
Calgary in December: quick answers
Is Calgary hot in December?
No. In December, Calgary is freezing cold: daytime highs average −3 °C and nights drop to about −13 °C.
Does it rain much in Calgary in December?
Rain is rare: about 4 days bring 15 mm in total.
Calgary month by month
The whole year in CalgaryAll destinations: CanadaWhere to go in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences