Average annual temperature is 9.4 °C
Absolute maximum temperature: 31.0 °C
Absolute minimum temperature: -16.0 °C
Number of sunny days: 128 days
Number of rainy days: 205 days
Number of snow days: 32 days
Look at detailed online map of Williston
* Weather data for Williston 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) | 12.8 | 16.1 | 13.4 | 27.5 | 31.0 | 30.8 | 30.5 | 29.7 | 29.7 | 25.9 | 15.5 | 12.1 |
| Average daytime temperature (°C) | 3.7 | 6.9 | 5.7 | 16.1 | 19.8 | 23.0 | 26.3 | 24.0 | 21.2 | 15.1 | 7.7 | 5.8 |
| Average temperature (°C) | 0.4 | 0.2 | 0.7 | 9.1 | 12.7 | 17.2 | 20.7 | 18.7 | 16.0 | 10.8 | 3.1 | 2.5 |
| Average night temperature (°C) | -2.0 | -4.3 | -3.2 | 3.5 | 6.2 | 11.9 | 15.8 | 14.6 | 11.7 | 7.2 | -0.3 | 0.1 |
| Absolute minimum temperature (°C) | -8.0 | -16.0 | -10.2 | -6.3 | -0.7 | 6.6 | 12.4 | 9.6 | 5.1 | -1.1 | -8.3 | -5.9 |
| 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) | 2.5 | 6.2 | 5.8 | 8.5 | 11.3 | 10.6 | 11.7 | 9.7 | 8.4 | 5.7 | 6.3 | 3.1 |
| Precipitation (mm) | 111 | 65 | 94 | 72 | 43 | 110 | 109 | 132 | 57 | 67 | 54 | 90 |
| Sunny days | 8 | 10 | 5 | 11 | 21 | 11 | 8 | 6 | 15 | 12 | 10 | 11 |
| Rainy days | 15 | 14 | 15 | 18 | 10 | 19 | 23 | 25 | 15 | 19 | 17 | 15 |
| Snow days | 8 | 4 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 5 |
The best time to visit Williston during the most sunny months:
The largest precipitation sum in Williston is at