Historical weather statistics for Charleston, United States
Typical weather in Charleston
July is typically the warmest month, with median daily highs near 30.4 °C and lows near 25.1 °C. January is typically the coolest month, with median daily highs near 15.2 °C and lows near 7.3 °C. Median precipitation probability is highest in August, at about 61.7 %. Median relative humidity reaches its annual high in August, at about 95.4 %. These are historical climate statistics, not a day-to-day forecast.
Monthly values are medians of historical daily weather statistics. They describe typical conditions and are not a forecast.
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| Month | Daily max temperature (°C) | Daily min temperature (°C) | Wind chance (%) | Humidity (%) | Precipitation chance (%) | Snow depth (cm) |
|---|---|---|---|---|---|---|
| January | 15.2 °C | 7.3 °C | 27.7 % | 93.3 % | 26.7 % | 0.0 cm |
| February | 16.8 °C | 8.7 °C | 28.2 % | 93.3 % | 28.0 % | 0.0 cm |
| March | 19.5 °C | 11.6 °C | 29.1 % | 92.9 % | 25.7 % | 0.0 cm |
| April | 22.7 °C | 15.0 °C | 30.7 % | 92.6 % | 22.8 % | 0.0 cm |
| May | 26.0 °C | 19.8 °C | 15.9 % | 93.1 % | 29.3 % | 0.0 cm |
| June | 29.1 °C | 23.7 °C | 18.0 % | 94.2 % | 50.5 % | 0.0 cm |
| July | 30.4 °C | 25.1 °C | 18.2 % | 94.7 % | 57.3 % | 0.0 cm |
| August | 29.9 °C | 25.0 °C | 10.0 % | 95.4 % | 61.7 % | 0.0 cm |
| September | 28.1 °C | 23.0 °C | 2.7 % | 94.7 % | 42.3 % | 0.0 cm |
| October | 24.5 °C | 17.8 °C | 10.0 % | 93.7 % | 20.3 % | 0.0 cm |
| November | 19.7 °C | 11.9 °C | 15.9 % | 93.3 % | 24.7 % | 0.0 cm |
| December | 16.8 °C | 9.3 °C | 26.4 % | 94.3 % | 26.7 % | 0.0 cm |