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South Carolina Temperature and Precipitation Trends 1901-2005

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South Carolina State Climatology Office
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Sumter County

30 Year Climate Normals (Sumter)
Max Temp. Mean Temp. Min Temp. Precip CDD HDD
1971-2000 75.3 F 63.2 F 51.0 F 48.65 Inches 1923 2577
1981-2010 73.7 F 62.1 F 50.5 F 46.93 Inches 1797 2844

Temperature Summary (1922-2016)


Highest Maximum: 108 F, September 4, 1925; Wedgefield
Lowest Minimum: 2 F, January 21, 1985; Sumter

Precipitation Summary (1945-2016)


Highest Daily Rainfall: 8.68 Inches, September 17, 1945; Sumter
Annual Average Rainfall: 47.51 Inches; Sumter
Wettest Year: 70.74 Inches, 1959; Sumter
Driest Year: 28.73 Inches, 1954; Wedgefield 6 S
Highest Daily Snowfall: 21.0 Inches, February 9, 1973: Wedgefield

Severe Weather Events

Tornado
21 Tornadoes (1950-2016)
Tornado damage: $4.757 million
8 tornado related injuries
1 tornado related fatality

Thunderstorm Winds
217 Wind events (winds exceeding 50 knots or 58 miles per hour, 1955-2016)

Hail (>1.0 inch)
57 Hail events (1955-2016)

Lightning
5 Lightning events (1993-2016)
Lightning damage: $1.658 million
0 Lightning related fatalities

Flood
15 Flood Events (1993-2016)

Snow and Ice
11 Winter frozen precipitation events (1993-2016)

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