Average annual temperature is 9.1 °C
Absolute maximum temperature: 29.3 °C
Absolute minimum temperature: -16.5 °C
Number of sunny days: 126
Number of rainy days: 207
Number of snow days: 32
Average annual precipitation: 1110 mm
Look at detailed online map of Williamsville
* Weather data for Williamsville United States is based on climate observations for 2023 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.6 | 15.7 | 12.8 | 26.4 | 28.4 | 29.2 | 29.1 | 29.3 | 28.7 | 25.3 | 14.3 | 11.9 |
| Average daytime temperature (°C) | 3.6 | 6.7 | 5.4 | 15.4 | 19 | 22.1 | 25.4 | 23.3 | 20.5 | 14.5 | 7.3 | 5.3 |
| Average temperature (°C) | 0.1 | 0 | 0.3 | 9 | 12.5 | 16.7 | 20.3 | 18.3 | 15.7 | 10.4 | 2.8 | 1.9 |
| Average night temperature (°C) | -2.4 | -4.6 | -3.4 | 3.5 | 6.8 | 11.9 | 16.2 | 14.7 | 12.1 | 7.4 | -0.5 | -0.5 |
| Absolute minimum temperature (°C) | -9.4 | -16.5 | -9.8 | -5.8 | 0.1 | 7.3 | 12.4 | 9.6 | 7.4 | -1 | -9.5 | -6.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10 | 11.2 | 12.7 | 14 | 15 | 15.2 | 15.1 | 14.4 | 13.1 | 11.8 | 10.4 | 9.4 |
| Daylight mean duration (h) | 9.6 | 10.6 | 12 | 13.3 | 14.5 | 15.1 | 14.9 | 13.8 | 12.5 | 11.1 | 9.9 | 9.2 |
| Daylight minimum duration (h) | 9.2 | 10.1 | 11.3 | 12.7 | 14 | 15 | 14.4 | 13.2 | 11.8 | 10.4 | 9.4 | 9.2 |
| Sunshine mean duration (h) | 4.2 | 7 | 6.4 | 8.5 | 10.8 | 11.2 | 11.6 | 9.9 | 8.8 | 7.2 | 6.9 | 4.4 |
| Precipitation (mm) | 129 | 75 | 116 | 94 | 51 | 113 | 109 | 116 | 64 | 101 | 57 | 84 |
| Sunny days | 6 | 9 | 5 | 10 | 21 | 10 | 7 | 7 | 14 | 12 | 14 | 11 |
| Rainy days | 15 | 15 | 16 | 19 | 10 | 20 | 24 | 24 | 16 | 19 | 13 | 16 |
| Snow days | 10 | 4 | 10 | 1 | 3 | 4 |
The best time to visit Williamsville during the most sunny months:
The largest precipitation sum in Williamsville is at