Watertown, SD Climate in July

Temperature for July

In Watertown, SD during July the average high temperature is 84.3°F. The hottest day on record was July 10, 1976 when the temperature hit 102.9°F.

Watertown, SD daily average and extreme temperature range for July

Low Temperature

During July the overnight temperature drops to an average of 60.5°F, with the lowest temperature of 42.1°F being recorded on July 13, 1990. In July it has never frozen overnight.

Precipitation for July

In July the average monthly rainfall in Watertown, SD is 2.20 inches with rain usually falling on between 8 and 9 days. 1949 was the driest July with only 0.00 inches of rain falling, and 1986 was the wettest July with 5.61 inches of rain. The wettest single day in July was 18 July 1985 when 2.20 inches of rain fell.

There are thunderstorms on between 5 and 6 days in July.