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Places › Seattle, WA › January

Seattle in January

An off month — score 45 of 100

Typical January days in Seattle reach about 47°F with nights near 37°F; rain is frequent — about 18 days see some rain, usually in showers.

Avg high
47°F
1991–2020 normal
Avg low
37°F
1991–2020 normal
Rain total
5.14 in
in a typical January
Rain days
18
days with at least 0.01 in
Daylight
8h 49m
at mid-January, computed
Snowfall
0.9 in
in a typical January

What to pack for Seattle in January

Every packing line is triggered by a number on this page — the rules are on How we pick.

January vs. the alternatives

This month
January · 45
High 47°F · rain 18 days
Best month
July · 98
High 76°F · rain 5 days
Neighbors
High 46°F · rain 20 days

The whole year in Seattle

Averages are the 1991–2020 climate normals (NOAA National Centers for Environmental Information) for the station named on each page. Rain days = days with at least 0.01 in of precipitation. Daylight is computed for the middle of the month.