Average annual temperature is 12.4 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -12.1 °C
Number of sunny days: 165 days
Number of rainy days: 188 days
Number of snow days: 12 days
Look at detailed online map of Boyleston
* Weather data for Boyleston 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) | 17.0 | 18.9 | 19.0 | 26.6 | 30.7 | 32.0 | 33.8 | 33.8 | 31.9 | 29.1 | 23.4 | 14.9 |
| Average daytime temperature (°C) | 5.4 | 9.4 | 9.9 | 17.7 | 23.2 | 27.4 | 28.4 | 27.1 | 25.3 | 18.5 | 11.5 | 8.0 |
| Average temperature (°C) | 1.7 | 3.2 | 4.3 | 11.0 | 17.0 | 21.2 | 23.3 | 22.3 | 19.8 | 13.6 | 6.2 | 4.1 |
| Average night temperature (°C) | -1.0 | -1.1 | -0.2 | 5.5 | 11.2 | 15.5 | 18.4 | 17.7 | 14.9 | 9.6 | 2.0 | 1.3 |
| Absolute minimum temperature (°C) | -11.2 | -12.1 | -8.5 | -2.8 | 2.4 | 9.3 | 13.7 | 11.4 | 9.5 | -3.6 | -9.7 | -7.5 |
| 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) | 9.7 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 3.4 | 7.3 | 6.5 | 8.9 | 10.6 | 11.1 | 12.3 | 10.9 | 10.0 | 7.0 | 7.7 | 4.3 |
| Precipitation (mm) | 82 | 94 | 132 | 88 | 67 | 41 | 82 | 103 | 42 | 94 | 20 | 52 |
| Sunny days | 7 | 16 | 12 | 14 | 16 | 15 | 7 | 15 | 16 | 14 | 20 | 13 |
| Rainy days | 16 | 12 | 18 | 16 | 15 | 15 | 24 | 16 | 14 | 17 | 9 | 16 |
| Snow days | 8 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Boyleston during the most sunny months:
The largest precipitation sum in Boyleston is at