Average annual temperature is 12.3 °C
Absolute maximum temperature: 35.5 °C
Absolute minimum temperature: -18.3 °C
Number of sunny days: 209 days
Number of rainy days: 142 days
Number of snow days: 14 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) | 13.1 | 15.0 | 21.2 | 27.7 | 31.0 | 31.8 | 35.5 | 35.5 | 33.4 | 31.6 | 19.7 | 14.6 |
| Average daytime temperature (°C) | 2.9 | 6.7 | 8.9 | 17.8 | 24.8 | 28.9 | 29.0 | 28.3 | 26.6 | 18.7 | 11.3 | 7.2 |
| Average temperature (°C) | -1.3 | 0.2 | 3.3 | 11.1 | 18.5 | 23.2 | 23.8 | 23.6 | 20.8 | 13.8 | 6.1 | 3.3 |
| Average night temperature (°C) | -4.3 | -4.6 | -0.8 | 5.8 | 12.6 | 17.7 | 19.2 | 19.5 | 16.0 | 10.0 | 1.8 | 0.3 |
| Absolute minimum temperature (°C) | -15.6 | -18.3 | -12.5 | -2.4 | 3.2 | 9.5 | 14.5 | 13.2 | 10.6 | -3.1 | -9.0 | -5.9 |
| 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 | 14.5 | 15.0 | 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) | 5.1 | 7.5 | 7.1 | 9.8 | 12.0 | 12.4 | 12.3 | 11.0 | 10.6 | 7.5 | 7.2 | 4.6 |
| Precipitation (mm) | 51 | 100 | 67 | 39 | 49 | 59 | 134 | 126 | 33 | 66 | 16 | 66 |
| Sunny days | 16 | 19 | 14 | 18 | 20 | 17 | 15 | 14 | 20 | 17 | 24 | 15 |
| Rainy days | 9 | 7 | 15 | 12 | 11 | 13 | 16 | 17 | 10 | 14 | 4 | 14 |
| Snow days | 6 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Mystic during the most sunny months:
The largest precipitation sum in Mystic is at