Average annual temperature is 10.8 °C
Absolute maximum temperature: 36.1 °C
Absolute minimum temperature: -26.7 °C
Number of sunny days: 186 days
Number of rainy days: 158 days
Number of snow days: 21 days
Look at detailed online map of Bolton
* Weather data for Bolton 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) | 9.0 | 11.8 | 20.2 | 25.1 | 31.3 | 32.6 | 33.9 | 36.1 | 33.5 | 27.8 | 18.3 | 13.0 |
| Average daytime temperature (°C) | 1.7 | 3.8 | 7.2 | 15.7 | 23.2 | 28.3 | 28.9 | 28.0 | 24.6 | 16.3 | 8.9 | 6.0 |
| Average temperature (°C) | -2.2 | -1.7 | 1.9 | 9.2 | 16.5 | 21.8 | 23.2 | 22.5 | 19.4 | 12.0 | 4.2 | 2.3 |
| Average night temperature (°C) | -5.0 | -6.3 | -2.0 | 3.9 | 10.3 | 15.6 | 17.9 | 17.8 | 15.4 | 8.3 | 0.5 | -0.1 |
| Absolute minimum temperature (°C) | -26.7 | -23.9 | -14.7 | -2.3 | 0.9 | 6.6 | 13.6 | 10.1 | 8.6 | -2.9 | -12.2 | -8.0 |
| 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 | 9.2 |
| 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) | 3.9 | 7.3 | 6.8 | 9.1 | 11.2 | 12.3 | 12.2 | 11.3 | 9.0 | 7.2 | 7.1 | 4.1 |
| Precipitation (mm) | 69 | 87 | 80 | 90 | 37 | 19 | 69 | 40 | 112 | 124 | 41 | 57 |
| Sunny days | 13 | 16 | 13 | 16 | 22 | 16 | 12 | 17 | 11 | 13 | 20 | 17 |
| Rainy days | 8 | 9 | 15 | 14 | 9 | 14 | 19 | 14 | 19 | 16 | 8 | 13 |
| Snow days | 10 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 1 |
The best time to visit Bolton during the most sunny months:
The largest precipitation sum in Bolton is at