Seattle, WA weather in January 1999

Temperature for January 1999

In January 1999 the average high temperature in Seattle, WA was 46.7°F, and this was 0.5°F warmer than the average of 46.2°F. The hottest day in January 1999 was 29 January when the temperature reached 52.0°F. Overnight the average temperature in January is 34.7°F and in 1999 the average overnight temperature was 3.3°F warmer at 38.0°F.

Precipitation for January 1999

In January the average monthly rainfall in Seattle, WA is 5.77 inches with rain usually falling on 18 days. In January 1999 there was a total of 6.44 inches of rain, that fell on 26 days.