Average annual temperature is 7.8 °C
Absolute maximum temperature: 30.6 °C
Absolute minimum temperature: -31.1 °C
Number of sunny days: 137 days
Number of rainy days: 193 days
Number of snow days: 35 days
Look at detailed online map of Windham County
* Weather data for Windham County 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) | 9.2 | 11.2 | 9.7 | 27.7 | 27.7 | 30.6 | 28.6 | 25.0 | 29.0 | 26.5 | 14.8 | 12.8 |
| Average daytime temperature (°C) | 1.8 | 1.8 | 3.6 | 12.9 | 18.0 | 20.9 | 24.9 | 22.4 | 20.1 | 15.2 | 5.3 | 4.3 |
| Average temperature (°C) | -1.7 | -3.7 | -0.9 | 7.1 | 11.8 | 15.9 | 19.9 | 17.7 | 15.6 | 10.6 | 0.6 | 0.2 |
| Average night temperature (°C) | -4.9 | -8.7 | -4.9 | 2.4 | 6.5 | 11.6 | 15.7 | 13.9 | 11.9 | 6.8 | -3.3 | -3.0 |
| Absolute minimum temperature (°C) | -14.4 | -31.1 | -11.8 | -6.9 | -1.0 | 5.2 | 10.7 | 9.1 | 6.8 | -1.9 | -13.5 | -11.9 |
| 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 | 9.0 |
| Daylight mean duration (h) | 9.4 | 10.5 | 11.9 | 13.4 | 14.7 | 15.3 | 15.0 | 13.9 | 12.5 | 11.0 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.9 | 6.2 | 7.1 | 8.2 | 11.7 | 9.9 | 10.3 | 10.0 | 7.9 | 7.1 | 6.9 | 4.7 |
| Precipitation (mm) | 137 | 65 | 139 | 120 | 85 | 138 | 299 | 113 | 115 | 132 | 62 | 185 |
| Sunny days | 5 | 9 | 12 | 14 | 19 | 4 | 2 | 9 | 14 | 16 | 17 | 16 |
| Rainy days | 15 | 11 | 11 | 16 | 12 | 26 | 29 | 22 | 16 | 15 | 8 | 12 |
| Snow days | 11 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 3 |
The best time to visit Windham County during the most sunny months:
Months with the longest average daylight duration in Windham County:
The largest precipitation sum in Windham County is at