Seattle, WA weather in January 1978

Temperature for January 1978

In January 1978 the average high temperature in Seattle, WA was 49.8°F, and this was 3.6°F warmer than the average of 46.2°F. The hottest day in January 1978 was 20 January when the temperature reached 55.0°F. Overnight the average temperature in January is 34.7°F and in 1978 the average overnight temperature was 4.1°F warmer at 38.8°F.

Precipitation for January 1978

In January the average monthly rainfall in Seattle, WA is 5.77 inches with rain usually falling on 18 days. In January 1978 there was a total of 3.82 inches of rain, that fell on 24 days.