Sumter, SC Climate in July

Temperature for July

In Sumter, SC during July the average high temperature is 90.2°F. The hottest day on record was July 1, 2012 when the temperature hit 105.8°F.

Sumter, SC daily average and extreme temperature range for July

Low Temperature

During July the overnight temperature drops to an average of 72.0°F, with the lowest temperature of 57.0°F being recorded on July 2, 1988. In July it has never frozen overnight.

Precipitation for July

In July the average monthly rainfall in Sumter, SC is 2.90 inches with rain usually falling on between 14 and 15 days. 1943 was the driest July with only 0.00 inches of rain falling, and 1991 was the wettest July with 12.98 inches of rain. The wettest single day in July was 30 July 1991 when 4.33 inches of rain fell.

There are thunderstorms on between 11 and 12 days in July.