Average annual temperature is 10.7 °C
Absolute maximum temperature: 37.2 °C
Absolute minimum temperature: -24.3 °C
Number of sunny days: 172 days
Number of rainy days: 173 days
Number of snow days: 20 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) | 10.4 | 15.3 | 20.3 | 26.0 | 31.0 | 32.4 | 32.7 | 37.2 | 33.9 | 27.9 | 19.5 | 13.1 |
| Average daytime temperature (°C) | 3.0 | 5.0 | 6.9 | 15.6 | 20.3 | 25.6 | 27.3 | 26.5 | 23.4 | 16.6 | 9.5 | 6.2 |
| Average temperature (°C) | -0.9 | -0.3 | 2.3 | 9.3 | 14.2 | 19.4 | 22.1 | 21.8 | 19.0 | 12.4 | 4.8 | 3.0 |
| Average night temperature (°C) | -3.8 | -4.3 | -1.2 | 3.8 | 9.1 | 14.3 | 17.8 | 17.8 | 15.3 | 9.1 | 1.0 | 0.6 |
| Absolute minimum temperature (°C) | -24.3 | -20.1 | -11.5 | -3.3 | 1.4 | 7.6 | 14.2 | 12.5 | 9.8 | -2.9 | -10.7 | -7.8 |
| 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) | 9.5 | 10.6 | 11.9 | 13.4 | 14.6 | 15.2 | 14.9 | 13.8 | 12.5 | 11.1 | 9.8 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.3 | 7.8 | 6.4 | 9.0 | 10.6 | 11.8 | 11.6 | 10.3 | 8.0 | 6.3 | 6.9 | 3.6 |
| Precipitation (mm) | 61 | 105 | 88 | 66 | 50 | 46 | 188 | 102 | 103 | 89 | 57 | 74 |
| Sunny days | 12 | 18 | 7 | 15 | 21 | 20 | 7 | 14 | 11 | 10 | 22 | 15 |
| Rainy days | 10 | 8 | 20 | 15 | 10 | 10 | 24 | 17 | 19 | 20 | 6 | 14 |
| Snow days | 9 | 2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 |
The best time to visit Windham during the most sunny months:
The largest precipitation sum in Windham is at