Average annual temperature is 10.6 °C
Absolute maximum temperature: 30.0 °C
Absolute minimum temperature: -15.1 °C
Number of sunny days: 140 days
Number of rainy days: 209 days
Number of snow days: 16 days
Look at detailed online map of Casselman
* Weather data for Casselman United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 16.6 | 18.8 | 20.1 | 26.1 | 25.8 | 29.4 | 30.0 | 29.5 | 29.1 | 24.7 | 17.2 | 16.1 |
| Average daytime temperature (°C) | 6.3 | 9.3 | 9.1 | 17.3 | 19.5 | 23.1 | 26.1 | 24.9 | 21.7 | 16.3 | 9.7 | 7.3 |
| Average temperature (°C) | 2.1 | 3.2 | 3.4 | 10.6 | 13.4 | 17.3 | 21.2 | 19.8 | 16.5 | 11.5 | 4.3 | 3.2 |
| Average night temperature (°C) | -0.9 | -1.5 | -0.7 | 4.9 | 7.6 | 12.1 | 16.9 | 15.4 | 12.3 | 7.5 | 0.1 | 0.0 |
| Absolute minimum temperature (°C) | -9.1 | -15.1 | -10.1 | -2.5 | 0.8 | 7.1 | 13.2 | 9.0 | 7.3 | -1.1 | -8.6 | -6.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 2.7 | 6.3 | 6.3 | 8.5 | 10.0 | 10.6 | 11.2 | 10.3 | 8.6 | 6.5 | 6.6 | 4.0 |
| Precipitation (mm) | 117 | 84 | 106 | 67 | 97 | 134 | 127 | 146 | 73 | 94 | 59 | 76 |
| Sunny days | 5 | 12 | 9 | 16 | 20 | 11 | 2 | 9 | 10 | 13 | 20 | 13 |
| Rainy days | 21 | 14 | 17 | 14 | 11 | 19 | 29 | 22 | 20 | 18 | 8 | 16 |
| Snow days | 5 | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Casselman during the most sunny months:
The largest precipitation sum in Casselman is at