Seattle, WA weather in December 1990

Temperature for December 1990

In December 1990 the average high temperature in Seattle, WA was 41.3°F, and this was 5.3°F cooler than the average of 46.6°F. The hottest day in December 1990 was 5 December when the temperature reached 53.1°F. Overnight the average temperature in December is 35.6°F and in 1990 the average overnight temperature was 6.7°F cooler at 28.9°F.

Precipitation for December 1990

In December the average monthly rainfall in Seattle, WA is 5.67 inches with rain usually falling on 19 days. In December 1990 there was a total of 4.05 inches of rain, that fell on 23 days.