Average annual temperature is 12.2 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: -10.5 °C
Number of sunny days: 161 days
Number of rainy days: 196 days
Number of snow days: 8 days
Look at detailed online map of Saint Clair
* Weather data for Saint Clair 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) | 18.9 | 23.2 | 22.9 | 26.5 | 25.9 | 29.9 | 32.0 | 30.6 | 30.7 | 25.4 | 22.0 | 17.2 |
| Average daytime temperature (°C) | 9.2 | 12.4 | 12.6 | 18.9 | 20.2 | 23.5 | 28.1 | 26.7 | 24.1 | 18.9 | 13.0 | 9.7 |
| Average temperature (°C) | 4.1 | 6.5 | 6.3 | 11.9 | 14.6 | 17.8 | 22.2 | 21.1 | 17.9 | 12.8 | 6.5 | 4.4 |
| Average night temperature (°C) | 0.7 | 2.0 | 1.5 | 6.4 | 9.9 | 13.2 | 17.5 | 16.8 | 13.5 | 8.1 | 2.2 | 0.7 |
| Absolute minimum temperature (°C) | -9.0 | -10.5 | -9.4 | -1.8 | 2.1 | 8.5 | 14.5 | 11.4 | 9.0 | 2.0 | -7.7 | -6.2 |
| 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 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 4.7 | 6.4 | 7.6 | 9.5 | 9.6 | 10.6 | 11.9 | 10.3 | 9.9 | 8.0 | 7.5 | 5.5 |
| Precipitation (mm) | 97 | 84 | 68 | 104 | 77 | 60 | 76 | 68 | 47 | 32 | 39 | 79 |
| Sunny days | 13 | 13 | 14 | 14 | 9 | 10 | 10 | 9 | 17 | 19 | 18 | 15 |
| Rainy days | 16 | 14 | 15 | 16 | 22 | 20 | 21 | 22 | 13 | 12 | 10 | 15 |
| Snow days | 2 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The best time to visit Saint Clair during the most sunny months:
The largest precipitation sum in Saint Clair is at