Average annual temperature is 10.7 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: -25.5 °C
Number of sunny days: 164 days
Number of rainy days: 185 days
Number of snow days: 16 days
Look at detailed online map of Great Brook Valley
* Weather data for Great Brook Valley 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) | 13.3 | 14.3 | 15.0 | 32.3 | 29.3 | 32.7 | 31.5 | 28.6 | 33.3 | 27.6 | 17.6 | 15.4 |
| Average daytime temperature (°C) | 5.3 | 5.2 | 7.4 | 16.2 | 20.7 | 23.4 | 27.9 | 25.1 | 22.3 | 18.0 | 8.5 | 7.5 |
| Average temperature (°C) | 1.7 | 0.2 | 2.5 | 10.0 | 14.4 | 17.9 | 23.0 | 20.3 | 17.9 | 13.3 | 3.8 | 3.1 |
| Average night temperature (°C) | -1.3 | -4.4 | -1.6 | 4.9 | 8.7 | 13.6 | 19.1 | 16.5 | 14.7 | 9.7 | 0.4 | 0.0 |
| Absolute minimum temperature (°C) | -7.0 | -25.5 | -6.6 | -2.5 | 2.6 | 6.7 | 13.6 | 13.5 | 8.4 | 1.9 | -5.1 | -6.6 |
| 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 | 9.1 |
| Daylight minimum duration (h) | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.2 | 6.4 | 7.5 | 8.5 | 11.5 | 9.7 | 10.5 | 9.6 | 7.4 | 7.8 | 7.0 | 5.4 |
| Precipitation (mm) | 175 | 48 | 139 | 80 | 76 | 108 | 193 | 126 | 231 | 101 | 41 | 189 |
| Sunny days | 9 | 12 | 14 | 15 | 20 | 9 | 6 | 10 | 12 | 18 | 22 | 17 |
| Rainy days | 17 | 10 | 14 | 15 | 11 | 21 | 25 | 21 | 18 | 13 | 7 | 13 |
| Snow days | 5 | 6 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Great Brook Valley during the most sunny months:
The largest precipitation sum in Great Brook Valley is at