Barnwell County

30 Year Climate Normals (Blackville 3 W (COOP) )
Max Temp. Mean Temp. Min Temp. Precip CDD HDD
1971-2000 77.6 F 64.6 F 51.6 F 47.23 Inches 2057 2177
1981-2010 77.8 F 64.1 F 50.4 F 44.5 Inches 1985 2318
1991-2020 74.8 F 63.9 F 52.9 F 46.22 Inches 2005 2383

Temperature Records (1896-2020)


Highest Maximum: 111 F, September 4, 1925; Blackville 3 W
Lowest Minimum: -3 F, February 14, 1899; Blackville 3 W

Precipitation Records (1896-2020)


Highest Daily Rainfall (COOP): 7.87 inches, September 2, 2016; Blackville 3 W (NWSLI)
Highest Daily Rainfall (CoCoRaHS): 5.52 inches, August 20, 2013; Barnwell 1.2 WSW
Annual Average Rainfall: 46.0 inches
Wettest Year: 1964, 75.10 inches; Blackville 3 W
Driest Year: 1954, 27.85 inches; Blackville 3 W
Highest Daily Snowfall: 7.0 inches, February 26, 1914; Blackville 3 W

Severe Weather Events- Countywide

Tornado

24 Tornadoes (1950-2020)
  • E/F0: 9
  • E/F1: 5
  • E/F2: 4
  • E/F3: 6
  • E/F4: 0
    • Period Of Record: 1950-2020
    Strongest: EF3 on April 13, 2020 and April 23, 1983
    Longest Path: 36.9 miles on April 13, 2020
    Widest Path: 1600 yards on January 27, 2017
    0 tornado related fatalities
    20 tornado related injuries
    Total Damage Costs: $10.5 Million

    Thunderstorm, High, and Strong Wind Events

    167 Total Wind Events (winds exceeding 50 knots or 58 miles per hour, 1955-2020)
  • 159 Thunderstorm wind events
  • 5 High wind events
  • 3 Strong wind events
    • 0 Wind-related fatalities
    2 Wind-related injuries
    Total Damage Costs: $421,000

    Hail (>1.0 inch)


    31 Hail events (1955-2020)

    Lightning


    5 Lightning events (1993-2020)
    0 Lightning related fatalities
    1 Lightning related injury
    Total Damage Costs: $113,000

    Flood

    8 Total Flood Events (1993-2016)
  • 3 Flood Events
  • 0 Coastal Flood Events
  • 5 Flash Flood Events
    • 0 Flood-related fatalities
    0 Flood-related injuries
    Total Damage Costs: $12,100

    Winter Weather-Related Events

    8 Total Winter Weather-Related Events
  • 3 Winter storm events
  • 5 Ice storm events
  • 0 Heavy snow events
  • 0 Frost/freeze events
  • 0 Winter weather events
  • 0 Cold/wind chill events
    • 0 Winter weather-related fatalities
    0 Winter weather-related injuries
    Total Damage Costs: $0