Climate averages 1991–2020
Lethbridge weather
in December.
A freezing month with light precipitation: the 11th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a freezing month in Lethbridge: daytime highs average -0.6°C and nights cool to about -8.4°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 16 mm of precipitation on roughly 4 days, which makes December a month with light precipitation (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 13 min on an average December day.
The nearest other city in this atlas is Calgary (175 km away). In December its highs average -2.8°C, 2.2°C cooler than Lethbridge, with 14 mm of precipitation.
Among the 86 cities listed in Canada, Lethbridge ranks 52nd of 86 for the warmest December highs and 7th of 86 for the driest December (precipitation, lowest first). The mean December high of those 86 cities is 0.2°C; Lethbridge is 0.8°C cooler than that mean.
From December to January, average highs fall by 0.3°C to -0.9°C, and monthly precipitation falls from 16 mm to 14 mm.
The annual picture
December in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Lethbridge climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.9°C-9.7°C | -9.7°C | 14 | 4.4 | 8.69 h |
| February | 1.5°C-8.2°C | -8.2°C | 13 | 4.0 | 10.110 h |
| March | 6.1°C-4.9°C | -4.9°C | 22 | 6.0 | 11.912 h |
| April | 11.6°C0.2°C | 0.2°C | 40 | 7.9 | 13.714 h |
| May | 17.1°C5.4°C | 5.4°C | 59 | 9.1 | 15.315 h |
| June | 20.9°C9.9°C | 9.9°C | 92 | 10.9 | 16.216 h |
| July | 25.6°C13.3°C | 13.3°C | 35 | 6.8 | 15.916 h |
| August | 25.2°C12.8°C | 12.8°C | 35 | 5.8 | 14.414 h |
| September | 19.7°C8.3°C | 8.3°C | 37 | 5.8 | 12.713 h |
| October | 11.9°C2.1°C | 2.1°C | 28 | 5.8 | 10.811 h |
| November | 4.1°C-3.8°C | -3.8°C | 22 | 5.3 | 9.19 h |
| December, selected | -0.6°C-8.4°C | -8.4°C | 16 | 4.4 | 8.28 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Calgary in DecemberCanada · 175 kmHigh -2.8°C · Low -12.5°C · 14 mm precipitation
- Airdrie in DecemberCanada · 198 kmHigh -3.3°C · Low -12.2°C · 14 mm precipitation
- Red Deer in DecemberCanada · 294 kmHigh -5.1°C · Low -14.2°C · 15 mm precipitation
- Missoula in DecemberUnited States · 326 kmHigh -0.1°C · Low -7.4°C · 51 mm precipitation
- Spokane Valley in DecemberUnited States · 395 kmHigh 1.7°C · Low -4.3°C · 85 mm precipitation
- Spokane in DecemberUnited States · 407 kmHigh 1.9°C · Low -4.1°C · 78 mm precipitation
- Sherwood Park in DecemberCanada · 426 kmHigh -7.1°C · Low -15.2°C · 14 mm precipitation
- Edmonton in DecemberCanada · 430 kmHigh -6.7°C · Low -15.0°C · 14 mm precipitation
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Lethbridge) is explained once on the Lethbridge year overview and on the Sources, method and limits page.