Average annual temperature is 11.9 °C
Absolute maximum temperature: 28.0 °C
Absolute minimum temperature: -17.5 °C
Number of sunny days: 178 days
Number of rainy days: 182 days
Number of snow days: 5 days
Look at detailed online map of Town of Chilmark
* Weather data for Town of Chilmark 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) | 11.6 | 10.3 | 8.8 | 15.3 | 16.9 | 20.4 | 25.6 | 23.7 | 28.0 | 20.8 | 16.4 | 15.2 |
| Average daytime temperature (°C) | 7.4 | 5.6 | 6.3 | 10.4 | 14.1 | 17.5 | 23.0 | 22.1 | 20.9 | 16.8 | 10.9 | 8.8 |
| Average temperature (°C) | 5.1 | 3.0 | 4.4 | 8.8 | 12.5 | 16.1 | 21.6 | 20.8 | 19.2 | 15.1 | 8.4 | 6.8 |
| Average night temperature (°C) | 3.3 | 0.4 | 2.7 | 7.5 | 11.1 | 15.0 | 20.2 | 19.5 | 17.8 | 13.7 | 6.3 | 5.0 |
| Absolute minimum temperature (°C) | -1.9 | -17.5 | -1.1 | 2.1 | 7.5 | 10.4 | 16.3 | 17.3 | 13.6 | 7.8 | -0.7 | -2.1 |
| 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) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 3.9 | 6.1 | 7.7 | 8.9 | 11.8 | 10.5 | 11.0 | 10.3 | 7.8 | 8.1 | 7.4 | 5.5 |
| Precipitation (mm) | 195 | 64 | 77 | 81 | 59 | 95 | 88 | 121 | 155 | 55 | 49 | 126 |
| Sunny days | 7 | 14 | 15 | 18 | 23 | 12 | 10 | 15 | 15 | 16 | 18 | 15 |
| Rainy days | 23 | 11 | 16 | 12 | 8 | 18 | 21 | 16 | 15 | 15 | 11 | 16 |
| Snow days | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Town of Chilmark during the most sunny months:
The largest precipitation sum in Town of Chilmark is at