Charleston County
Temperature Summary(1951-2006)
Highest Maximum: 105 F,June 26 1952, August 1, 1999
Lowest Minimum: 4 F, January 21, 1985
Annual Average:
Maximum 75.5 F
Mean 64.6 F
Minimum 53.8 F
Precipitation Summary (1930-2006)
Highest Daily Rainfall: 10.52 inches, September 21, 1998
Annual Average Rainfall: 55.97 inches
Wettest Year: 78.88 inches, 1964
Driest Year: 28.80 inches, 1931
Mean Snowfall: .5 inches
Largest Snowfall: 6.0 inches 1989
Extreme Events (*Data through August 2006)
36 Tornadoes (1950-2006)
Total damage from all tornadoes= $3.181 million
17 Injuries from all the tornadoes
203 Wind Events (thunderstorm winds exceeding 60 miles per hour)
98 Hail Events (1955-2006)
Total damage= $0
11 Lightning Events (1993-2006)
Total damage= $580,000
1 Lightning-related Injuries
3 Death from Lightning
Following data from 1993-2006
50 Total Floods
28 Flash Floods
20 River Floods
2 Urban Floods
4 Ice, Sleet or Snow
177 Months in Moderate to Extreme according to Palmer Drought Severity Index computed by Regional drought monitor. Drought
