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United StatesThe weather in December in Washington D.C.
It's cool in December in Washington D.C. with an average temperature of 11°C. Temperatures this month range from a low of 6°C to a high of 14°C. At night, you can expect temperatures between -2°C and 4°C.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for Washington D.C., United States. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 26°C in 2021, Washington D.C. reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was -10°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of -19°C to a highest value of 14°C.
Precipitation and snowfall
In December, there is an average of 63 mm of precipitation, spread over 9 days. Of the total precipitation, about 0,6 cm falls as snow in December. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in December for Washington D.C.
Click on any day in December to get detailed info about the usual weather on that day in Washington D.C.. Check out the historical temperatures and precipitation over the past 10 years on this day.
December weather comparison
| Washington D.C. | New York | |
|---|---|---|
| Average temperature | 11°C | 9°C |
| Max. temperature | 14°C | 12°C |
| Min. temperature | -2°C | -5°C |
| Total precipitation | 63 mm | 133 mm |
| Rainy days | 9 days | 17 days |
| Total snowfall | 0,6 cm | 9,7 cm |
| Snowy days | 1 day | 3 days |
Start of December
The month of December starts in Washington D.C. with cool temps, averaging around 12°C during the day and nights around 2°C.
Mid December
By mid-December, daytime temps drop to around 11°C, with nights around 2°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of December
By the end of December, the average daytime temperature in Washington D.C. is around 10°C, while nighttime temps are about 1°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 3 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Check out the climate of Washington D.C. for all months and discover the best travel time
Curious about the weather in other parts of United States? Check out the climate and weather for spots like New York City, Miami, Los Angeles, or explore other destinations in United States.
Temperature charts
These charts show the average temperatures in December in Washington D.C., United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in December in Washington D.C.
Temperature in December in Washington D.C. over the years
Precipitation charts
These charts show the average amount of precipitation in December in Washington D.C., United States. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in December in Washington D.C.
Total precipitation in December in Washington D.C. over the years
Daily Snowfall in December in Washington D.C.
Snowfall in December in Washington D.C. per year
Daily UV index in December in Washington D.C.
This chart shows the average daily UV index in December in Washington D.C., with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in December in Washington D.C.
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Average weather in Washington D.C. by month
Click on a month below to see detailed weather info for Washington D.C.. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.