Average annual temperature is 9.3 °C
Absolute maximum temperature: 30.1 °C
Absolute minimum temperature: -27.5 °C
Number of sunny days: 126 days
Number of rainy days: 201 days
Number of snow days: 38 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) | 13.6 | 13.9 | 13.7 | 28.6 | 28.0 | 30.0 | 29.9 | 26.5 | 30.1 | 27.8 | 15.6 | 12.7 |
| Average daytime temperature (°C) | 3.7 | 4.5 | 5.4 | 15.1 | 19.0 | 22.1 | 26.6 | 23.8 | 21.0 | 16.4 | 7.2 | 6.0 |
| Average temperature (°C) | 0.4 | -1.0 | 0.2 | 9.0 | 12.6 | 16.9 | 21.3 | 19.0 | 16.3 | 11.4 | 2.6 | 2.2 |
| Average night temperature (°C) | -2.7 | -5.9 | -4.2 | 4.0 | 6.8 | 12.5 | 16.9 | 15.0 | 12.5 | 7.3 | -1.1 | -0.5 |
| Absolute minimum temperature (°C) | -10.3 | -27.5 | -13.3 | -4.1 | 0.5 | 7.6 | 11.2 | 10.7 | 5.6 | 0.0 | -6.4 | -8.1 |
| 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 | 13.9 | 12.5 | 11.1 | 9.8 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.2 | 6.0 | 6.6 | 8.6 | 11.6 | 10.5 | 11.5 | 10.3 | 8.0 | 7.0 | 6.4 | 3.5 |
| Precipitation (mm) | 85 | 59 | 123 | 100 | 45 | 105 | 171 | 140 | 107 | 74 | 74 | 149 |
| Sunny days | 8 | 8 | 6 | 12 | 19 | 6 | 4 | 6 | 12 | 16 | 14 | 15 |
| Rainy days | 15 | 10 | 13 | 17 | 12 | 24 | 27 | 25 | 18 | 15 | 12 | 13 |
| Snow days | 8 | 10 | 12 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 3 |
The best time to visit Windham during the most sunny months:
The largest precipitation sum in Windham is at