Seattle, WA weather in September 1984

Temperature for September 1984

In September 1984 the average high temperature in Seattle, WA was 70.5°F, and this was 1.0°F cooler than the average of 71.5°F. The hottest day in September 1984 was 15 September when the temperature reached 86.0°F. Overnight the average temperature in September is 51.3°F and in 1984 the average overnight temperature was 0.5°F cooler at 50.9°F.

Precipitation for September 1984

In September the average monthly rainfall in Seattle, WA is 1.89 inches with rain usually falling on 10 days. In September 1984 there was a total of 1.11 inches of rain, that fell on 11 days.