Seattle, WA Climate in October

Temperature for October

In Seattle, WA during October the average high temperature is 60.9°F. The hottest day on record was October 2, 1987 when the temperature hit 88.5°F.

Seattle, WA daily average and extreme temperature range for October

Low Temperature

During October the overnight temperature drops to an average of 45.2°F, with the lowest temperature of 28.4°F being recorded on October 19, 1949. Overnight temperatures drop below freezing between 1 and 2 times in October.

Precipitation for October

In October the average monthly rainfall in Seattle, WA is 3.67 inches with rain usually falling on between 15 and 16 days. 2002 was the driest October with only 0.21 inches of rain falling, and 2003 was the wettest October with 9.15 inches of rain. The wettest single day in October was 21 October 2003 when 4.60 inches of rain fell.

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