Average annual temperature is 18.7 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: -2.7 °C
Number of sunny days: 183 days
Number of rainy days: 182 days
Look at detailed online map of Willis
* Weather data for Willis 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) | 22.7 | 25.6 | 26.7 | 28.9 | 31.7 | 36.9 | 36.1 | 37.6 | 32.7 | 31.7 | 27.0 | 21.1 |
| Average daytime temperature (°C) | 14.5 | 16.8 | 19.2 | 22.7 | 28.0 | 32.0 | 32.7 | 33.3 | 30.1 | 25.0 | 18.0 | 14.8 |
| Average temperature (°C) | 10.2 | 11.4 | 13.7 | 16.8 | 22.5 | 26.5 | 27.8 | 28.1 | 24.7 | 19.7 | 12.8 | 9.6 |
| Average night temperature (°C) | 6.8 | 7.6 | 9.3 | 12.4 | 17.7 | 21.7 | 23.7 | 24.0 | 20.2 | 15.5 | 8.6 | 5.7 |
| Absolute minimum temperature (°C) | -1.4 | -2.7 | -2.1 | 7.0 | 10.0 | 19.0 | 20.1 | 19.0 | 16.0 | 3.3 | 0.5 | -0.4 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 5.9 | 6.3 | 7.8 | 8.2 | 11.1 | 12.2 | 11.5 | 11.0 | 10.4 | 8.1 | 7.1 | 7.2 |
| Precipitation (mm) | 217 | 133 | 185 | 169 | 54 | 80 | 99 | 88 | 23 | 60 | 68 | 50 |
| Sunny days | 12 | 13 | 14 | 11 | 14 | 11 | 10 | 16 | 18 | 23 | 20 | 21 |
| Rainy days | 19 | 15 | 17 | 19 | 17 | 19 | 21 | 15 | 12 | 8 | 10 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Willis during the most sunny months:
The largest precipitation sum in Willis is at