Average annual temperature is 6.3 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: -33.8 °C
Number of sunny days: 116 days
Number of rainy days: 178 days
Number of snow days: 71 days
Look at detailed online map of Lac-Castor
* Weather data for Lac-Castor Canada is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 2.8 | 7.0 | 5.9 | 23.4 | 30.5 | 32.0 | 30.4 | 25.3 | 31.1 | 27.2 | 12.0 | 5.2 |
| Average daytime temperature (°C) | -3.2 | -3.6 | 1.7 | 10.9 | 17.6 | 23.7 | 25.1 | 21.8 | 22.2 | 14.1 | 2.7 | 0.4 |
| Average temperature (°C) | -7.1 | -8.9 | -2.8 | 4.3 | 11.1 | 17.9 | 20.4 | 17.4 | 16.3 | 10.5 | -1.0 | -3.5 |
| Average night temperature (°C) | -10.9 | -13.7 | -6.6 | -0.7 | 4.8 | 12.8 | 16.6 | 13.6 | 11.7 | 7.6 | -3.8 | -6.9 |
| Absolute minimum temperature (°C) | -21.5 | -33.8 | -14.7 | -12.2 | -1.1 | 7.4 | 11.4 | 8.4 | 4.8 | -2.6 | -11.3 | -22.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.3 | 11.9 | 13.6 | 15.0 | 15.7 | 15.4 | 14.1 | 12.6 | 10.9 | 9.4 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.2 | 4.9 | 6.2 | 7.5 | 10.5 | 10.9 | 11.3 | 9.2 | 9.8 | 4.3 | 4.0 | 2.9 |
| Precipitation (mm) | 80 | 82 | 73 | 110 | 105 | 71 | 228 | 110 | 32 | 142 | 53 | 90 |
| Sunny days | 9 | 3 | 11 | 11 | 19 | 7 | 1 | 6 | 20 | 8 | 8 | 13 |
| Rainy days | 3 | 8 | 8 | 16 | 12 | 23 | 30 | 25 | 10 | 22 | 9 | 12 |
| Snow days | 19 | 17 | 12 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 13 | 6 |
The best time to visit Lac-Castor during the most sunny months:
Months with the longest average daylight duration in Lac-Castor:
The largest precipitation sum in Lac-Castor is at