Washington Weather in December
United States · 30-year monthly averages
🤔 Fair time to visit
December in Washington is chilly, with average daytime highs around 9°C (49°F) and nighttime lows near 1°C (35°F). Expect roughly 87mm of precipitation spread over about 8 rainy days, with a moderate amount of rain.
Avg high
9°C
49°F
Avg low
1°C
35°F
Rainfall
87mm
moderate
Rainy days
8
days with ≥1mm
🎒 What to pack
- jacket or coat
- long-sleeve layers
December vs the rest of the year
FAQ
- How hot is Washington in December?
- December in Washington is chilly, with average daytime highs around 9°C (49°F) and nighttime lows near 1°C (35°F). Expect roughly 87mm of precipitation spread over about 8 rainy days, with a moderate amount of rain.
- Does it rain a lot in Washington in December?
- Washington sees around 87mm of precipitation in December on average — moderate by global standards.
- Is December a good time to visit Washington?
- December is a workable month to visit Washington, but expect some weather trade-offs.