Average annual temperature is 14.0 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: -10.0 °C
Number of sunny days: 191 days
Number of rainy days: 170 days
Number of snow days: 4 days
Look at detailed online map of Charles Town
* Weather data for Charles Town 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) | 18.0 | 22.5 | 25.1 | 31.6 | 29.9 | 33.9 | 37.5 | 34.7 | 36.6 | 27.8 | 23.8 | 17.6 |
| Average daytime temperature (°C) | 9.2 | 11.8 | 12.6 | 21.8 | 23.2 | 27.7 | 32.8 | 30.9 | 26.2 | 20.7 | 13.0 | 9.9 |
| Average temperature (°C) | 4.9 | 5.9 | 6.4 | 14.6 | 16.4 | 21.0 | 25.8 | 24.4 | 20.4 | 14.8 | 7.2 | 5.4 |
| Average night temperature (°C) | 1.7 | 1.3 | 1.6 | 8.5 | 10.1 | 15.1 | 20.4 | 19.1 | 15.6 | 10.1 | 2.6 | 2.0 |
| Absolute minimum temperature (°C) | -3.6 | -10.0 | -6.3 | 0.0 | 3.8 | 10.7 | 17.5 | 14.7 | 10.4 | 3.8 | -6.1 | -4.1 |
| 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 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.2 | 10.0 | 9.5 |
| 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) | 4.8 | 7.0 | 7.9 | 9.1 | 9.8 | 10.6 | 11.8 | 11.0 | 9.0 | 8.1 | 7.7 | 5.5 |
| Precipitation (mm) | 48 | 52 | 80 | 108 | 42 | 119 | 89 | 32 | 115 | 41 | 69 | 114 |
| Sunny days | 13 | 16 | 13 | 18 | 17 | 12 | 8 | 16 | 17 | 18 | 25 | 18 |
| Rainy days | 17 | 10 | 18 | 12 | 14 | 18 | 23 | 15 | 13 | 13 | 5 | 12 |
| Snow days | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Charles Town during the most sunny months:
The largest precipitation sum in Charles Town is at