Seattle, WA weather in September 1986

Temperature for September 1986

In September 1986 the average high temperature in Seattle, WA was 68.7°F, and this was 2.8°F cooler than the average of 71.5°F. The hottest day in September 1986 was 7 September when the temperature reached 88.2°F. Overnight the average temperature in September is 51.3°F and in 1986 the average overnight temperature was 1.4°F cooler at 49.9°F.

Precipitation for September 1986

In September the average monthly rainfall in Seattle, WA is 1.89 inches with rain usually falling on 10 days. In September 1986 there was a total of 2.07 inches of rain, that fell on 14 days.