Average annual temperature is 11.9 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -19.5 °C
Number of sunny days: 200 days
Number of rainy days: 145 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) | 13.2 | 12.8 | 22.6 | 26.8 | 31.7 | 32.9 | 34.3 | 36.1 | 33.7 | 30.6 | 18.4 | 14.6 |
| Average daytime temperature (°C) | 2.5 | 5.3 | 8.5 | 17.7 | 25.1 | 29.5 | 28.7 | 28.2 | 26.6 | 18.2 | 10.7 | 7.0 |
| Average temperature (°C) | -1.7 | -0.6 | 3.0 | 10.6 | 18.4 | 23.3 | 23.4 | 23.3 | 20.6 | 13.4 | 5.5 | 2.8 |
| Average night temperature (°C) | -4.5 | -5.2 | -1.1 | 5.0 | 12.1 | 17.3 | 18.3 | 18.8 | 15.9 | 9.5 | 1.3 | 0.0 |
| Absolute minimum temperature (°C) | -16.2 | -19.5 | -12.3 | -2.8 | 3.6 | 9.6 | 12.4 | 11.8 | 10.5 | -3.5 | -12.3 | -7.1 |
| 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 | 9.2 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.5 | 7.2 | 7.1 | 9.6 | 11.9 | 12.6 | 12.5 | 11.4 | 10.0 | 7.5 | 7.2 | 4.4 |
| Precipitation (mm) | 48 | 88 | 67 | 43 | 64 | 49 | 70 | 66 | 77 | 59 | 16 | 70 |
| Sunny days | 17 | 15 | 14 | 17 | 22 | 17 | 14 | 17 | 13 | 15 | 23 | 16 |
| Rainy days | 6 | 10 | 15 | 12 | 9 | 13 | 17 | 14 | 17 | 15 | 5 | 12 |
| Snow days | 8 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 3 |
The best time to visit Windham during the most sunny months:
The largest precipitation sum in Windham is at