Washington in December
4.6out of 10
Not the best time
Cold: highs around 3°C. Some rain: about 8 rainy days.
3°CAvg high
-4°CAvg low
8Rainy days (57 mm)
9:06 hDaylight
07:21Sunrise · 16:27 Sunset
Why this score
- Cold: highs around 3°C
- Some rain: about 8 rainy days
- Nights fall to about -4°C
What to wear and pack
- Winter coat, hat and scarf
- Rain jacket or compact umbrella
- Gloves for freezing mornings
How reliable is the forecast?
Rainfall in December is fairly consistent from year to year (2.4 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 1°C | -7°C | 53 mm | 8 | – | – | 4.0 |
| February | 4°C | -5°C | 52 mm | 7 | – | – | 4.7 |
| March | 10°C | 0°C | 75 mm | 10 | – | – | 5.7 |
| April | 17°C | 6°C | 111 mm | 12 | – | – | 6.6 |
| May | 23°C | 12°C | 118 mm | 13 | – | – | 7.2 |
| June | 28°C | 18°C | 111 mm | 12 | – | – | 7.3 |
| July | 29°C | 20°C | 97 mm | 10 | – | – | 7.6 |
| August | 28°C | 18°C | 79 mm | 10 | – | – | 7.8 |
| September | 25°C | 14°C | 76 mm | 8 | – | – | 8.0 |
| October | 18°C | 8°C | 78 mm | 9 | – | – | 7.3 |
| November | 10°C | 1°C | 71 mm | 8 | – | – | 6.0 |
| December | 3°C | -4°C | 57 mm | 8 | – | – | 4.6 |
Frequently asked questions
How hot is Washington in December?
Daytime highs average 3°C and nights about -4°C.
When is the best time to visit Washington?
The best months are September, August, July.