Sumter County
Temperature Summary (1922-2009)
Highest Maximum: 108 F, September 4, 1925; Wedgefield
Lowest Minimum: 2 F, January 21, 1985; Sumter
Annual Average: 1971-2000 Sumter
Maximum: 75.3 F
Mean: 63.2 F
Minimum: 51.0 F
Precipitation Summary (1945-2009)
Highest Daily Rainfall: 8.68 Inches, September 17, 1945; Sumter
Annual Average Rainfall: 48.65 Inches
Wettest Year: 70.69 Inches, 1959
Driest Year: 28.81 Inches, 1954
Highest Daily Snowfall: 21.0 Inches, February 9, 1973
Extreme Events (*Data through December 2009)
18 Tornadoes (1950-2009)
Tornado damages: $4.597 million
8 Tornado related injuries
1 Tornado related fatality
109 Wind events (winds exceeding 50 knots or 58 miles per hour)
83 Hail events (1955-2009)
Hail damages: $7,000
9 Hail related injuries
2 Lightning events (1955-2009)
Lightning damages: $241,000
0 Lightning related injuries
0 Lightning related fatalities
Following data from 1993-2009
6 Flood events
8 Winter precipitation events
181 Months in moderate to extreme drought as defined by the Palmer Drought Severity Index, computed by Regional Drought Monitor.
Incipient: 136
Moderate: 141
Severe: 29
Extreme: 11
