Average annual temperature is 9.6 °C
Absolute maximum temperature: 32.4 °C
Absolute minimum temperature: -21.4 °C
Number of sunny days: 123 days
Number of rainy days: 219 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) | 13.2 | 15.3 | 14.5 | 27.8 | 29.0 | 30.7 | 32.4 | 27.9 | 30.4 | 26.8 | 16.1 | 11.1 |
| Average daytime temperature (°C) | 3.8 | 6.0 | 6.3 | 16.4 | 19.7 | 23.1 | 27.3 | 24.3 | 22.0 | 16.1 | 7.6 | 5.8 |
| Average temperature (°C) | 0.5 | -0.3 | 1.1 | 9.6 | 12.6 | 17.5 | 21.6 | 19.0 | 16.6 | 11.5 | 2.8 | 2.2 |
| Average night temperature (°C) | -2.2 | -5.0 | -3.0 | 4.3 | 6.2 | 12.6 | 17.0 | 15.1 | 12.5 | 7.9 | -0.5 | -0.3 |
| Absolute minimum temperature (°C) | -8.6 | -21.4 | -10.2 | -4.6 | -0.3 | 6.7 | 13.0 | 10.9 | 6.6 | -0.8 | -6.8 | -7.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 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) | 9.5 | 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) | 2.7 | 5.9 | 6.3 | 8.8 | 12.1 | 11.1 | 10.9 | 10.1 | 8.6 | 7.0 | 6.6 | 3.4 |
| Precipitation (mm) | 86 | 60 | 91 | 91 | 48 | 108 | 162 | 190 | 64 | 83 | 38 | 138 |
| Sunny days | 9 | 10 | 6 | 11 | 20 | 7 | 3 | 9 | 15 | 11 | 12 | 10 |
| Rainy days | 17 | 13 | 18 | 19 | 11 | 23 | 28 | 22 | 15 | 20 | 15 | 18 |
| Snow days | 5 | 5 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 |
The best time to visit Windham during the most sunny months:
The largest precipitation sum in Windham is at