Weather in Washington in December 2024
Average weather
Average temperature in Washington in December
The temperature in December is +48°F on average, with a range between a maximum of +64°F during the day and a minimum of +9°F at night.
The average maximum temperature goes up 13% by the end of the month, compared with the beginning of the month, from +50°F to +57°F.
Is Washington warm or cold in December?
Washington is typically chill in December.
Maximum temperatures go down compared to the previous month from +57°F to +48°F. The minimum temperature also goes down from +41°F to +34°F.
Pack a jumper and a jacket as there will be cooler temperatures.
December is one of the coolest months in Washington, here is the comparison with other months:
Climate in Washington in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +57°F | +48°F | +43°F | ||||
| Min. temperature | ||||||
| +16°F | +1°F | -6°F | ||||
| Max. temperature | ||||||
| +81°F | +77°F | +75°F | ||||
| Rainfall | ||||||
| 84 mm | 71 mm | 59 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 65% | 65% | 63% | ||||
| Air pressure | ||||||
| 1018 HPa | 1018 HPa | 1018 HPa | ||||
| Sunny days | ||||||
| 6 | 4 | 4 | ||||
| Cloudy days | ||||||
| 18 | 20 | 20 | ||||
| Rainy days | ||||||
| 6 | 6 | 5 | ||||
| Snowy days | ||||||
| 0 | 1 | 2 | ||||
December weather is still as ok as in November. It’s getting colder in December. From +57°F in the day, the average maximum temperature lowers to +48°F. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 84 mm to 71 mm. Humidity levels don’t change as the month goes on, averaging around 65%. The average wind speed doesn’t change much during December, staying around 2 m/s. The days becoming less sunny, going from 6 sunny days in November to 4 in December.
January brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Washington is gradually decreasing during December, going from 5 m/s to 1 m/s over the course of the month.
Rain
Snow
December is one of the snowiest months in Washington.
Here’s how December is compared with other months in the amount of snow, total mm:
How was the weather last December in Washington?
Climate Change Over the Years
The climate in Washington in December has not changed that much over the last 43 years.
The average temperature was the lowest in 1989 (+36°F) and the highest in 2015 (+60°F). The driest year was 1989 with only 25 mm of rainfall, and the wettest year was 1996 with 351 mm.
FAQ
Is December a good time to visit Washington?
Can you sunbathe in Washington in December?
Is Washington rainy in December?
Is it sunny in Washington in December?
Other cities in USA
Monthly weather in Washington
Source of the data
For this page, we’ve looked at the typical weather in Washington, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.