Seattle, WA weather in September 1989

Temperature for September 1989

In September 1989 the average high temperature in Seattle, WA was 77.2°F, and this was 5.6°F warmer than the average of 71.5°F. The hottest day in September 1989 was 23 September when the temperature reached 91.0°F. Overnight the average temperature in September is 51.3°F and in 1989 the average overnight temperature was 0.4°F warmer at 51.7°F.

Precipitation for September 1989

In September the average monthly rainfall in Seattle, WA is 1.89 inches with rain usually falling on 10 days. In September 1989 there was a total of 0.49 inches of rain, that fell on 7 days.