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Seattle Weather in January | Temperature, Rain What to Pack Seattle in January rewards travelers with average highs of 8°C and overnight lows around 2°C Expect around 18 rainy days, so a compact umbrella is worth carrying With 4 daily sunshine hours on average, conditions are cool and bracing, well suited for active days on foot
January weather - Winter 2027 - Seattle, WA January is the first month it typically snows Throughout January, in the average 1 3 snowfall days, it receives 0 12" (3mm) of snow In Seattle, during the entire year, snow falls for 4 8 days and aggregates up to 0 94" (24mm) of snow In January, the average ocean temperature is 45 5°F (7 5°C)
Does It Snow in Seattle? A Locals Real Answer in 2026 Yes, January is Seattle’s snowiest month, averaging 2 1 inches (5 3 cm) of snowfall at sea level January snow events in Seattle occur in most years, though measurable accumulation — defined as 1 inch (2 5 cm) or more — happens in roughly 50–60% of January months historically
Weather in Seattle in January 2027 - Detailed Forecast Snowfall in Seattle during January is quite rare, with fewer than 2 snowy days on average In general, the average temperature in Seattle at the beginning of January is 44 °F As the month progressed, temperatures tended to moderately rise, reaching an average of 46 °F by the end of January
The 5 Biggest Snowstorms to Ever Hit Seattle Seattle features more rain than snow, but giant storms do sometimes hit the city We review the biggest stowstorms to ever hit the Puget Sound
January 2026 Weather History in Seattle It features all historical weather data series we have available, including the Seattle temperature history for January 2026 You can drill down from year to month and even day level reports by clicking on the graphs
Snow in Washington State: Where, When, and How Much Does it snow in Washington State? See average snowfall for Seattle, Spokane, and Yakima, this winter's NOAA outlook, and how to prep for snow and outages