Is Washington hot in December?
Days are typically cold at 9°C, while nights average 1.1°C.
United States · 1991–2020 normal
Washington in
December.
Typical December weather in Washington: 9°C by day, 1.1°C at night, 87 mm of rain over 8 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high9°C
Typical low1.1°C
Rain87 mm
Wet days8
In the year-round weather comparison, December scores 14 out of 100 (May leads the year at 82). Daylight is calculated as 9 h 27 from latitude 38.90°.
December at a glance
What is Washington like in December?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 87 mm across about 8 wet days.
How much daylight is there?
There are about 9 h 27 between sunrise and sunset at mid-month, calculated from the place latitude.
Is December a good time to visit?
December ranks 11 of 12 in our weather comparison; May ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4140963
- NOAA station
- USW00013743 · WASHINGTON REAGAN NATL AP
- Station distance
- 5.3 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Washington is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
How travel partnerships will work