WEATHER IN Charleston
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -16 (1994) | 26.1 | 35.0 | 43.9 | 81 (1932) |
| february | -12 (1996) | 28.6 | 38.2 | 47.8 | 80 (1932) |
| march | -5 (1943) | 35.1 | 46.0 | 56.8 | 92 (1929) |
| april | 18 (1923) | 44.5 | 56.9 | 69.4 | 96 (1925) |
| may | 26 (1966) | 53.2 | 64.7 | 76.2 | 98 (1930) |
| june | 33 (1972) | 61.5 | 72.3 | 83.1 | 105 (1931) |
| july | 46 (1937) | 65.5 | 75.8 | 86.0 | 108 (1931) |
| august | 41 (1965) | 64.1 | 74.6 | 85.2 | 108 (1918) |
| september | 32 (1942) | 57.1 | 68.3 | 79.5 | 104 (1932) |
| october | 17 (1962) | 45.3 | 57.0 | 68.7 | 96 (1903) |
| november | 6 (1950) | 35.6 | 46.4 | 57.3 | 87 (1931) |
| december | -17 (1917) | 29.9 | 38.7 | 47.5 | 80 (1982) |
| year | -17 (1917) | 45.7 | 55.6 | 65.6 | 108 (1931) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 3.27 | 1.05 (1896) | 9.11 (1950) | 1.90 (1920) |
| february | 3.36 | 0.32 (1901) | 8.10 (1887) | 2.68 (2003) |
| march | 4.14 | 0.66 (1910) | 8.90 (1890) | 2.76 (1997) |
| april | 3.56 | 0.50 (1976) | 7.15 (1908) | 2.47 (1977) |
| may | 4.93 | 0.84 (1977) | 8.76 (2001) | 2.38 (1917) |
| june | 4.72 | 0.70 (1966) | 10.56 (1998) | 3.35 (1901) |
| july | 5.38 | 0.66 (1894) | 13.54 (1961) | 5.60 (1961) |
| august | 3.75 | 0.31 (2012) | 10.45 (1958) | 4.13 (1958) |
| september | 3.46 | 0.46 (1908) | 7.69 (2004) | 4.15 (2004) |
| october | 2.91 | 0.07 (1897) | 7.18 (1925) | 2.30 (1915) |
| november | 3.20 | 0.45 (1904) | 9.12 (2003) | 3.61 (2003) |
| december | 3.56 | 0.45 (1965) | 8.02 (1978) | 2.44 (1978) |
| year | 44.03 | 26.12 (1930) | 61.01 (2003) | 5.60 (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 |