Berkeley County

30 Year Climate Normals (Pinopolis Dam)
Max Temp. Mean Temp. Min Temp. Precip CDD HDD
1971-2000 76.4 F 63.9 F 51.4 F 51.01 Inches 1397 3309
1981-2010 75.8 F 64.2 F 52.6 F 49.6 Inches 2119 2391
1991-2020 76.5 F 66.1 F 55.7 F 52.32 Inches 2473 2043

Temperature Records (1943-2020)


Highest Maximum: 105 F, August 11, 2007; Jamestown and August 2, 1999; Moncks Corner 4 N and June 6, 2011; Witherbee South Carolina
Lowest Minimum: 8 F, January 22, 1985; Pinopolis Dam and January 6, 2018; Jamestown

Precipitation Records (1893-2020)


Highest Daily Rainfall (COOP): 9.5 inches, October 8, 2016; Moncks Corner 4 N
Highest Daily Rainfall (CoCoRaHS): 11.5 inches, October 4, 2015
Annual Average Rainfall: 49.6 inches
Wettest Year: 1893, 69.44 inches; Saint Stephens
Driest Year: 1954, 24.15 inches; Pinopolis Dam
Highest Daily Snowfall: 8.2 inches, February 13, 2010; Summerville 3.8 NE (CoCoRaHS)

Severe Weather Events- Countywide

Tornado

37 Tornadoes (1950-2020)
  • E/F0: 24
  • E/F1: 10
  • E/F2: 2
  • E/F3: 1
  • E/F4: 0
  • Period Of Record: 1950-2020
    Strongest: EF3 on April 13, 2020
    Longest Path: 10 miles on May 10, 1998
    Widest Path: 666 yards on May 10, 1998
    1 tornado related fatality
    26 tornado related injuries
    Total Damage Costs: $8.5 Million

    Thunderstorm, High, and Strong Wind Events

    380 Total Wind Events (winds exceeding 50 knots or 58 miles per hour, 1955-2020)
  • 354 Thunderstorm wind events
  • 4 High wind events
  • 22 Strong wind events
  • 2 Wind-related fatalities
    7 Wind-related injuries
    Total Damage Costs: $509,100

    Hail (>1.0 inch)


    160 Hail events (1955-2020)

    Lightning


    20 Lightning events (1993-2020)
    1 Lightning related fatality
    5 Lightning related injuries
    Total Damage Costs: $393,000

    Flood

    65 Total Flood Events (1993-2020)
  • 4 Flood Events
  • 0 Coastal Flood Events
  • 61 Flash Flood Events
  • 1 Flood-related fatality
    0 Flood-related injuries
    Total Damage Costs: $4.739 Million

    Winter Weather-Related Events

    27 Total Winter Weather-Related Events
  • 0 Winter storm events
  • 11 Ice storm events
  • 12 Heavy snow events
  • 1 Frost/freeze event
  • 2 Winter weather events
  • 1 Cold/wind chill event
  • 0 Winter weather-related fatalities
    0 Winter weather-related injuries
    Total Damage Costs: $310,000