Average annual temperature is 11.7 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -21.5 °C
Number of sunny days: 223 days
Number of rainy days: 119 days
Number of snow days: 23 days
Look at detailed online map of Willett
* Weather data for Willett 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) | 8.2 | 13.1 | 20.4 | 29.1 | 30.1 | 32.4 | 35.1 | 36.1 | 33.9 | 31.9 | 19.1 | 13.8 |
| Average daytime temperature (°C) | 0.7 | 4.9 | 8.1 | 18.3 | 25.4 | 29.6 | 29.3 | 29.1 | 27.0 | 18.1 | 11.4 | 6.1 |
| Average temperature (°C) | -3.5 | -1.5 | 1.7 | 11.0 | 18.9 | 23.8 | 23.6 | 24.0 | 21.3 | 13.0 | 5.8 | 1.7 |
| Average night temperature (°C) | -6.8 | -6.0 | -2.7 | 5.5 | 13.0 | 18.0 | 18.5 | 19.5 | 16.5 | 8.8 | 1.2 | -1.8 |
| Absolute minimum temperature (°C) | -21.5 | -20.4 | -12.2 | -4.8 | 2.3 | 9.5 | 11.2 | 12.6 | 11.0 | -5.5 | -8.2 | -5.9 |
| 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) | 9.5 | 10.6 | 11.9 | 13.3 | 14.5 | 15.2 | 14.9 | 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) | 4.4 | 7.1 | 7.9 | 9.2 | 11.2 | 12.8 | 11.6 | 11.1 | 9.9 | 7.6 | 6.9 | 4.8 |
| Precipitation (mm) | 68 | 52 | 41 | 49 | 40 | 45 | 90 | 87 | 48 | 48 | 8 | 59 |
| Sunny days | 18 | 18 | 20 | 18 | 17 | 15 | 15 | 19 | 21 | 16 | 23 | 23 |
| Rainy days | 5 | 6 | 8 | 10 | 14 | 15 | 16 | 12 | 9 | 15 | 5 | 4 |
| Snow days | 8 | 4 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 |
The best time to visit Willett during the most sunny months:
The largest precipitation sum in Willett is at