Seattle, WA weather in December 1989

Temperature for December 1989

In December 1989 the average high temperature in Seattle, WA was 48.6°F, and this was 1.9°F warmer than the average of 46.6°F. The hottest day in December 1989 was 5 December when the temperature reached 57.0°F. Overnight the average temperature in December is 35.6°F and in 1989 the average overnight temperature was 1.4°F warmer at 37.0°F.

Precipitation for December 1989

In December the average monthly rainfall in Seattle, WA is 5.67 inches with rain usually falling on 19 days. In December 1989 there was a total of 4.61 inches of rain, that fell on 15 days.