WEATHER IN Charleston
Climate tables. Data for Charleston.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -26.7 (1994) | -3.3 | 1.7 | 6.6 | 27.2 (1932) |
| february | -24.4 (1996) | -1.9 | 3.4 | 8.8 | 26.7 (1932) |
| march | -20.6 (1943) | 1.7 | 7.8 | 13.8 | 33.3 (1929) |
| april | -7.8 (1923) | 6.9 | 13.8 | 20.8 | 35.6 (1925) |
| may | -3.3 (1966) | 11.8 | 18.2 | 24.6 | 36.7 (1930) |
| june | 0.6 (1972) | 16.4 | 22.4 | 28.4 | 40.6 (1931) |
| july | 7.8 (1937) | 18.6 | 24.3 | 30.0 | 42.2 (1931) |
| august | 5.0 (1965) | 17.8 | 23.7 | 29.6 | 42.2 (1918) |
| september | 0.0 (1942) | 13.9 | 20.2 | 26.4 | 40.0 (1932) |
| october | -8.3 (1962) | 7.4 | 13.9 | 20.4 | 35.6 (1903) |
| november | -14.4 (1950) | 2.0 | 8.0 | 14.1 | 30.6 (1931) |
| december | -27.2 (1917) | -1.2 | 3.7 | 8.6 | 26.7 (1982) |
| year | -27.2 (1917) | 7.6 | 13.1 | 18.7 | 42.2 (1931) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 83 | 27 (1896) | 231 (1950) | 48 (1920) |
| february | 85 | 8 (1901) | 206 (1887) | 68 (2003) |
| march | 105 | 17 (1910) | 226 (1890) | 70 (1997) |
| april | 90 | 13 (1976) | 182 (1908) | 63 (1977) |
| may | 125 | 21 (1977) | 223 (2001) | 61 (1917) |
| june | 120 | 18 (1966) | 268 (1998) | 85 (1901) |
| july | 137 | 17 (1894) | 344 (1961) | 142 (1961) |
| august | 95 | 8 (2012) | 265 (1958) | 105 (1958) |
| september | 88 | 12 (1908) | 195 (2004) | 105 (2004) |
| october | 74 | 2 (1897) | 182 (1925) | 58 (1915) |
| november | 81 | 11 (1904) | 232 (2003) | 92 (2003) |
| december | 90 | 11 (1965) | 204 (1978) | 62 (1978) |
| year | 1118 | 663 (1930) | 1550 (2003) | 142 (1961) |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |