Average annual temperature is 7.7 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -30.0 °C
Number of sunny days: 189 days
Number of rainy days: 128 days
Number of snow days: 48 days
Look at detailed online map of Windham
* Weather data for Windham 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) | 11.4 | 10.3 | 9.6 | 21.8 | 26.8 | 26.3 | 34.1 | 35.9 | 31.5 | 24.1 | 15.0 | 15.0 |
| Average daytime temperature (°C) | 2.7 | 2.9 | 2.2 | 10.9 | 20.0 | 20.7 | 28.0 | 27.7 | 22.6 | 12.0 | 8.9 | 7.5 |
| Average temperature (°C) | -1.7 | -3.1 | -3.8 | 4.0 | 13.8 | 15.1 | 21.0 | 20.6 | 15.5 | 5.7 | 3.0 | 1.7 |
| Average night temperature (°C) | -4.7 | -7.3 | -8.2 | -1.3 | 8.2 | 9.7 | 13.9 | 14.5 | 9.8 | 1.3 | -1.4 | -2.2 |
| Absolute minimum temperature (°C) | -21.1 | -30.0 | -18.4 | -12.1 | 1.6 | 2.9 | 6.9 | 9.6 | 4.0 | -23.3 | -7.8 | -8.3 |
| 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 | 8.0 |
| Daylight mean duration (h) | 9.0 | 10.3 | 11.9 | 13.6 | 15.1 | 15.8 | 15.5 | 14.2 | 12.6 | 10.9 | 9.4 | 8.6 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 5.9 | 6.9 | 8.1 | 9.5 | 11.7 | 11.2 | 13.6 | 11.1 | 9.9 | 7.3 | 6.7 | 6.1 |
| Precipitation (mm) | 24 | 41 | 24 | 63 | 119 | 144 | 11 | 38 | 56 | 46 | 16 | 12 |
| Sunny days | 18 | 14 | 15 | 13 | 8 | 3 | 21 | 21 | 15 | 17 | 22 | 22 |
| Rainy days | 6 | 3 | 2 | 9 | 23 | 27 | 10 | 10 | 15 | 10 | 8 | 5 |
| Snow days | 7 | 11 | 14 | 8 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 4 |
The best time to visit Windham during the most sunny months:
Months with the longest average daylight duration in Windham:
The largest precipitation sum in Windham is at