Sumter, SC Climate in June

Temperature for June

In Sumter, SC during June the average high temperature is 88.0°F. The hottest day on record was June 30, 2012 when the temperature hit 107.2°F.

Sumter, SC daily average and extreme temperature range for June

Low Temperature

During June the overnight temperature drops to an average of 68.7°F, with the lowest temperature of 50.0°F being recorded on June 2, 1966. In June it has never frozen overnight.

Precipitation for June

In June the average monthly rainfall in Sumter, SC is 3.05 inches with rain usually falling on between 12 and 13 days. 1943 was the driest June with only 0.00 inches of rain falling, and 1973 was the wettest June with 17.76 inches of rain. The wettest single day in June was 18 June 1991 when 5.20 inches of rain fell.

In June it usually snows on between 0 and 1 days. Tornados are reported on 0 and 1 days in June. There are thunderstorms on between 8 and 9 days in June.