Washington weather in January
One place stands in for Washington here — these are Seattle's numbers, not a statewide average.
Based on 1 weather station, in Seattle. One station — Seattle speaks for Puget Sound, not for the Cascades, the rainforest coast, or the dry half of the state east of the mountains.
Seattle & Puget Sound
Highs near 48°, nights around 38°, and 5.8 in of rain in a typical January.
| Place | Highs / lows | Wet days | Snow | The short version |
|---|---|---|---|---|
| Seattle | 48° / 38° | 13 | 1.8 in | Damp, mild, and dim — the Big Dark at full depth. |
Each place above has its own page for the full story — what the month feels like, what to pack, and whether the timing is right.