Washington Weather in December
9°C high · -1.1°C low · 81 mm rain · 2.9h sun
Dec is a cool month in Washington — not peak season, but a good time to avoid crowds.
December at a glance
| Metric | Value |
|---|---|
| Average high | 9°C |
| Average low | -1.1°C |
| Rainfall | 81 mm |
| Sunshine | 2.9 hours/day |
| Daylight | 9.3 hours |
What to pack in December
Pack a warm coat and layers for Washington in December.
Washington weather by month
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Frequently asked questions
What is the weather in Washington in December?
Highs of 9°C and lows of -1.1°C, with about 81 mm of rain and 2.9 hours of sunshine per day.
Is December a good time to visit Washington?
Dec is a cool month in Washington — not peak season, but a good time to avoid crowds.
What to do in Washington · Best time to visit Washington
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.