Average annual temperature is 19.4 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: -0.8 °C
Number of sunny days: 183 days
Number of rainy days: 182 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) | 22.8 | 26.7 | 27.8 | 29.7 | 33.3 | 34.8 | 36.7 | 37.6 | 34.4 | 30.4 | 26.2 | 22.9 |
| Average daytime temperature (°C) | 16.8 | 20.2 | 21.4 | 24.8 | 27.8 | 30.9 | 33.7 | 34.3 | 31.1 | 25.2 | 19.1 | 15.8 |
| Average temperature (°C) | 11.7 | 14.6 | 15.6 | 18.7 | 22.0 | 25.4 | 28.0 | 28.4 | 25.3 | 19.4 | 13.5 | 10.5 |
| Average night temperature (°C) | 7.6 | 10.5 | 10.9 | 13.6 | 17.1 | 20.5 | 23.5 | 23.6 | 20.4 | 14.4 | 9.1 | 6.3 |
| Absolute minimum temperature (°C) | -0.6 | -0.3 | -0.8 | 8.5 | 9.9 | 18.2 | 20.8 | 19.4 | 16.1 | 8.4 | 0.0 | 0.0 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.3 | 11.0 | 12.0 | 13.0 | 13.8 | 14.2 | 14.0 | 13.3 | 12.4 | 11.4 | 10.5 | 10.1 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 6.1 | 7.1 | 8.8 | 9.6 | 10.9 | 11.6 | 11.6 | 11.0 | 10.6 | 8.9 | 6.5 | 6.9 |
| Precipitation (mm) | 131 | 124 | 159 | 141 | 101 | 141 | 67 | 87 | 65 | 58 | 79 | 117 |
| Sunny days | 13 | 9 | 17 | 14 | 9 | 13 | 10 | 14 | 20 | 23 | 20 | 21 |
| Rainy days | 18 | 19 | 14 | 16 | 22 | 17 | 21 | 17 | 10 | 8 | 10 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Saint Clair during the most sunny months:
The largest precipitation sum in Saint Clair is at