Average annual temperature is 19.4 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: -1.8 °C
Number of sunny days: 181 days
Number of rainy days: 184 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) | 23.3 | 26.9 | 28.4 | 30.7 | 33.4 | 35.5 | 37.2 | 38.5 | 34.9 | 30.6 | 26.5 | 24.0 |
| Average daytime temperature (°C) | 16.9 | 20.0 | 21.4 | 25.2 | 28.3 | 31.2 | 34.2 | 34.9 | 31.5 | 25.2 | 18.9 | 15.6 |
| Average temperature (°C) | 11.6 | 14.4 | 15.5 | 18.7 | 22.0 | 25.4 | 28.0 | 28.7 | 25.4 | 19.3 | 13.2 | 10.2 |
| Average night temperature (°C) | 7.4 | 10.4 | 10.7 | 13.4 | 16.8 | 20.2 | 23.2 | 23.7 | 20.2 | 14.3 | 8.7 | 6.0 |
| Absolute minimum temperature (°C) | -1.8 | -0.7 | -1.8 | 8.4 | 9.1 | 18.4 | 20.1 | 20.4 | 16.1 | 8.3 | 0.4 | -1.0 |
| 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) | 6.5 | 7.3 | 8.7 | 9.6 | 10.8 | 11.5 | 11.6 | 11.4 | 10.9 | 8.9 | 6.4 | 7.1 |
| Precipitation (mm) | 113 | 119 | 207 | 113 | 126 | 163 | 90 | 93 | 31 | 54 | 89 | 107 |
| Sunny days | 14 | 8 | 16 | 12 | 13 | 10 | 11 | 15 | 18 | 23 | 19 | 22 |
| Rainy days | 17 | 20 | 15 | 18 | 18 | 20 | 20 | 16 | 12 | 8 | 11 | 9 |
| 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