Weather in Seattle, Washington, United States in December
In an average December, Seattle sees a daily high around 44°F and a low around 35°F, based on 1981–2026 of local climate records.
| Average high | 44°F |
|---|---|
| Typical high range | 38°F to 51°F |
| Average low | 35°F |
| Typical low range | 27°F to 42°F |
| Average daily precipitation | 0.20 in |
December records
The most extreme December on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
60°F
2002-12-14
Lowest
18°F
1985-12-01
Low
Highest
53°F
2005-12-24
Lowest
5°F
1990-12-21
Feels-like
Highest
53°F
2005-12-24
Lowest
-7°F
1990-12-20
Humidity
Highest
11.0 g/m³
2005-12-24
Lowest
1.2 g/m³
1990-12-21
Wind
Highest
26 mph
2006-12-15
Lowest
2 mph
1985-12-26
Precip
Wettest
13.12 in
1996
Driest
1.95 in
1985
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