Average annual temperature is 10.8 °C
Absolute maximum temperature: 32.1 °C
Absolute minimum temperature: -11.7 °C
Number of sunny days: 143 days
Number of rainy days: 199 days
Number of snow days: 23 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) | 14.3 | 19.9 | 17.7 | 27.4 | 30.4 | 32.1 | 31.5 | 29.6 | 31.9 | 27.4 | 17.0 | 14.2 |
| Average daytime temperature (°C) | 5.4 | 9.2 | 8.2 | 16.7 | 20.9 | 24.7 | 27.3 | 26.1 | 23.5 | 16.6 | 9.6 | 7.3 |
| Average temperature (°C) | 1.4 | 2.0 | 2.6 | 9.9 | 14.1 | 18.6 | 21.7 | 20.2 | 17.7 | 12.0 | 4.7 | 3.6 |
| Average night temperature (°C) | -1.3 | -2.5 | -1.3 | 4.4 | 8.2 | 13.4 | 17.3 | 15.9 | 13.3 | 8.6 | 1.2 | 1.0 |
| Absolute minimum temperature (°C) | -9.1 | -11.7 | -7.7 | -4.2 | 1.0 | 8.5 | 13.9 | 11.7 | 7.2 | 0.5 | -7.8 | -6.0 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 2.8 | 6.3 | 6.0 | 8.3 | 11.0 | 11.4 | 12.0 | 11.0 | 8.9 | 6.6 | 6.2 | 3.6 |
| Precipitation (mm) | 130 | 70 | 119 | 112 | 47 | 146 | 97 | 77 | 29 | 59 | 57 | 84 |
| Sunny days | 8 | 10 | 9 | 15 | 21 | 13 | 3 | 8 | 13 | 13 | 18 | 12 |
| Rainy days | 15 | 13 | 16 | 15 | 10 | 17 | 28 | 23 | 17 | 18 | 10 | 17 |
| Snow days | 8 | 5 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Windham during the most sunny months:
The largest precipitation sum in Windham is at