WEATHER IN Charleston
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | 6 (1985) | 38.9 | 49.5 | 60.2 | 83 (1950) |
| february | 12 (1973) | 41.6 | 52.7 | 63.8 | 87 (1989) |
| march | 15 (1980) | 47.3 | 58.7 | 70.1 | 90 (1974) |
| april | 29 (1944) | 54.5 | 65.8 | 77.1 | 95 (2002) |
| may | 36 (1963) | 63.0 | 73.3 | 83.6 | 99 (1938) |
| june | 50 (1972) | 70.4 | 79.4 | 88.5 | 103 (1944) |
| july | 54 (2010) | 73.7 | 82.5 | 91.3 | 104 (1986) |
| august | 56 (1979) | 73.1 | 81.4 | 89.8 | 105 (1999) |
| september | 42 (1967) | 68.3 | 76.9 | 85.4 | 99 (1944) |
| october | 27 (1976) | 57.7 | 67.8 | 77.9 | 94 (1986) |
| november | 15 (1950) | 47.1 | 58.3 | 69.4 | 88 (1961) |
| december | 8 (1962) | 41.6 | 52.2 | 62.7 | 83 (1972) |
| year | 6 (1985) | 55.5 | 65.8 | 76.1 | 105 (1999) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 3.37 | 0.19 (1898) | 8.92 (1993) | 3.90 (1993) |
| february | 3.05 | 0.33 (1947) | 10.47 (2013) | 5.07 (1940) |
| march | 3.35 | 0.05 (1842) | 12.14 (1843) | 4.48 (1959) |
| april | 3.29 | 0.01 (1972) | 15.00 (1877) | 4.10 (1958) |
| may | 3.32 | 0.13 (1911) | 9.56 (1922) | 6.23 (1967) |
| june | 6.21 | 0.14 (1850) | 27.24 (1973) | 9.40 (1973) |
| july | 6.60 | 0.45 (1844) | 18.46 (1964) | 5.39 (1981) |
| august | 6.97 | 0.40 (1900) | 19.18 (1885) | 7.88 (1940) |
| september | 6.01 | 0.18 (1990) | 17.31 (1945) | 10.52 (1998) |
| october | 4.33 | 0.00 (2000) | 14.32 (1876) | 6.57 (2008) |
| november | 2.66 | 0.03 (2007) | 8.33 (1865) | 5.24 (1969) |
| december | 3.35 | 0.03 (1889) | 11.08 (1941) | 4.00 (1941) |
| year | 51.03 | 23.69 (1850) | 78.42 (1876) | 10.52 (1998) |
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 |