Average annual temperature is 4.9 °C
Absolute maximum temperature: 33.6 °C
Absolute minimum temperature: -23.8 °C
Number of sunny days: 171 days
Number of rainy days: 116 days
Number of snow days: 78 days
Look at detailed online map of Mystic
* Weather data for Mystic 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) | 5.7 | 7.0 | 8.9 | 16.3 | 22.1 | 27.0 | 33.6 | 31.8 | 27.8 | 20.8 | 15.0 | 9.5 |
| Average daytime temperature (°C) | -1.7 | -0.1 | 1.5 | 7.8 | 16.1 | 21.3 | 28.7 | 27.1 | 22.4 | 13.6 | 6.2 | 1.7 |
| Average temperature (°C) | -5.8 | -6.6 | -4.2 | 0.9 | 8.1 | 13.7 | 19.8 | 18.5 | 13.8 | 5.9 | -0.9 | -5.7 |
| Average night temperature (°C) | -8.4 | -10.7 | -8.7 | -4.3 | 1.6 | 6.5 | 11.1 | 10.9 | 6.6 | 0.2 | -5.8 | -11.1 |
| Absolute minimum temperature (°C) | -23.4 | -18.4 | -15.5 | -12.5 | -1.3 | 3.4 | 5.3 | 5.0 | 1.0 | -14.2 | -20.2 | -23.8 |
| 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 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.7 | 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) | 4.5 | 7.1 | 8.0 | 10.8 | 12.7 | 12.4 | 13.2 | 12.3 | 11.2 | 9.1 | 7.3 | 6.0 |
| Precipitation (mm) | 138 | 39 | 84 | 58 | 21 | 71 | 27 | 52 | 20 | 49 | 39 | 55 |
| Sunny days | 8 | 13 | 7 | 13 | 15 | 10 | 15 | 17 | 16 | 18 | 22 | 17 |
| Rainy days | 5 | 1 | 4 | 9 | 16 | 20 | 16 | 14 | 14 | 11 | 5 | 1 |
| Snow days | 18 | 14 | 20 | 8 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 13 |
The best time to visit Mystic during the most sunny months:
The largest precipitation sum in Mystic is at