Average annual temperature is 9.2 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: -23.9 °C
Number of sunny days: 179 days
Number of rainy days: 155 days
Number of snow days: 31 days
Look at detailed online map of Town of Charlestown
* Weather data for Town of Charlestown 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) | 5.4 | 8.9 | 9.6 | 26.2 | 30.5 | 31.3 | 32.4 | 35.0 | 34.7 | 30.8 | 17.2 | 11.9 |
| Average daytime temperature (°C) | -0.3 | 1.0 | 3.8 | 13.8 | 20.2 | 26.0 | 27.9 | 26.6 | 24.2 | 15.4 | 7.1 | 4.5 |
| Average temperature (°C) | -3.3 | -3.7 | -0.8 | 7.7 | 13.8 | 19.7 | 22.0 | 21.0 | 18.6 | 11.1 | 2.8 | 1.1 |
| Average night temperature (°C) | -5.8 | -7.9 | -4.8 | 2.8 | 8.1 | 13.9 | 16.7 | 16.4 | 14.4 | 7.5 | -0.6 | -1.7 |
| Absolute minimum temperature (°C) | -22.9 | -23.9 | -14.8 | -4.4 | -0.9 | 6.3 | 12.3 | 9.3 | 6.7 | -2.9 | -11.8 | -8.6 |
| 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) | 9.3 | 10.5 | 11.9 | 13.5 | 14.8 | 15.4 | 15.1 | 14.0 | 12.5 | 11.0 | 9.7 | 9.0 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 3.6 | 6.6 | 6.7 | 8.6 | 10.4 | 12.0 | 13.0 | 11.6 | 9.6 | 6.5 | 6.5 | 4.8 |
| Precipitation (mm) | 37 | 79 | 95 | 106 | 67 | 62 | 79 | 77 | 31 | 78 | 31 | 44 |
| Sunny days | 12 | 12 | 11 | 13 | 20 | 20 | 7 | 15 | 16 | 10 | 25 | 18 |
| Rainy days | 10 | 9 | 12 | 15 | 11 | 10 | 24 | 16 | 14 | 19 | 5 | 10 |
| Snow days | 9 | 7 | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 3 |
The best time to visit Town of Charlestown during the most sunny months:
Months with the longest average daylight duration in Town of Charlestown:
The largest precipitation sum in Town of Charlestown is at