Seattle, WA Climate in July

Temperature for July

In Seattle, WA during July the average high temperature is 77.0°F. The hottest day on record was July 30, 2009 when the temperature hit 102.9°F.

Seattle, WA daily average and extreme temperature range for July

Low Temperature

During July the overnight temperature drops to an average of 54.4°F, with the lowest temperature of 43.0°F being recorded on July 2, 1954. In July it has never frozen overnight.

Precipitation for July

In July the average monthly rainfall in Seattle, WA is 0.80 inches with rain usually falling on between 7 and 8 days. 1958 was the driest July with only 0.00 inches of rain falling, and 1983 was the wettest July with 3.10 inches of rain. The wettest single day in July was 14 July 1981 when 0.83 inches of rain fell.

In July it usually snows on between 0 and 1 days. In July there have been some years when thunderstorms have occurred, although there are other years when there hasn't been a thunderstorm in July.