Climate averages 1991–2020
Trois-Rivières weather
in December.
A freezing month with heavy precipitation: the 10th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a freezing month in Trois-Rivières: daytime highs average -2.4°C and nights cool to about -10.3°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 90 mm of precipitation on roughly 12 days, which makes December a month with heavy precipitation (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 41 min on an average December day.
The nearest other city in this atlas is Repentigny (97 km away). In December its highs average -1.5°C, 0.9°C warmer than Trois-Rivières, with 85 mm of precipitation.
Among the 86 cities listed in Canada, Trois-Rivières ranks 71st of 86 for the warmest December highs and 65th of 86 for the driest December (precipitation, lowest first). The mean December high of those 86 cities is 0.2°C; Trois-Rivières is 2.6°C cooler than that mean.
From December to January, average highs fall by 3.9°C to -6.3°C, and monthly precipitation falls from 90 mm to 77 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
Trois-Rivières climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -6.3°C-15.5°C | -15.5°C | 77 | 10.9 | 9.09 h |
| February | -4.3°C-13.6°C | -13.6°C | 61 | 8.8 | 10.310 h |
| March | 1.5°C-7.8°C | -7.8°C | 76 | 10.5 | 11.912 h |
| April | 9.5°C-0.2°C | -0.2°C | 98 | 11.4 | 13.514 h |
| May | 18.0°C8.0°C | 8.0°C | 96 | 12.4 | 15.015 h |
| June | 22.9°C13.9°C | 13.9°C | 109 | 12.3 | 15.716 h |
| July | 25.0°C16.8°C | 16.8°C | 112 | 13.5 | 15.415 h |
| August | 23.9°C16.0°C | 16.0°C | 109 | 12.0 | 14.214 h |
| September | 19.6°C11.7°C | 11.7°C | 98 | 11.0 | 12.613 h |
| October | 12.1°C5.2°C | 5.2°C | 111 | 11.5 | 11.011 h |
| November | 4.7°C-1.8°C | -1.8°C | 89 | 11.4 | 9.59 h |
| December, selected | -2.4°C-10.3°C | -10.3°C | 90 | 11.7 | 8.79 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
- Repentigny in DecemberCanada · 97 kmHigh -1.5°C · Low -9.1°C · 85 mm precipitation
- Terrebonne in DecemberCanada · 111 kmHigh -1.6°C · Low -9.1°C · 86 mm precipitation
- Québec in DecemberCanada · 114 kmHigh -3.2°C · Low -11.1°C · 101 mm precipitation
- Mercier–Hochelaga-Maisonneuve in DecemberCanada · 116 kmHigh -1.5°C · Low -8.8°C · 85 mm precipitation
- Sherbrooke in DecemberCanada · 116 kmHigh -1.3°C · Low -9.4°C · 92 mm precipitation
- Longueuil in DecemberCanada · 117 kmHigh -1.3°C · Low -8.5°C · 85 mm precipitation
- Saint-Louis-de-Terrebonne in DecemberCanada · 119 kmHigh -1.9°C · Low -9.6°C · 86 mm precipitation
- Villeray–Saint-Michel–Parc-Extension in DecemberCanada · 120 kmHigh -1.7°C · Low -9.3°C · 85 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 Trois-Rivières) is explained once on the Trois-Rivières year overview and on the Sources, method and limits page.