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United States weather

Weather in Washington County, Washington, D.C. for December 2025

Your guide to Washington County weather in December - trends and predictions

    Official Weather Alert ⚠️

  • - See hour by hour.

    • Snow Forecast ❄️

  • With an average of 3 snowy days, Washington County usually enjoys a light touch of snow in December.
    According to Washington County snow forecast for December 2025, 1 snowy day is expected until the end of the month at Tuesday, December 30.

    • Temperatures

  • Until now, December 2025 in Washington County is cooler than usual, with temperatures averaging 4.4 °F, this is -4.5 °F below the typical seasonal average.

  • The forecast for the next days in Washington County predicts temperatures to be around 8 °F, close to the historical average.

  • In general, the average temperature in Washington County at the beginning of December is 9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 7.7 °F by the end of December.

    • Rain 🌧️

  • The climate of Washington County in December is notably wet, with an average of 15 rainy days, and a total of 132.5 mm of precipitation.

    • More

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Average dry days
13
Dry days
Average rainy days
15
Rainy days
Average snowy days
3
Snow days
Average temperatures
9°/2°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
70 %
Avg humidity

Washington County Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
8°
2
Sunny
10°
3
Sunny
12°
4
Overcast
9°
5
Overcast
7°
6
Moderate rain at times
9°
7
Overcast
8°
8
Overcast
10°
9
Overcast
7°
10
Overcast
11°
11
Overcast
11°
12
Overcast
8°
13
Cloudy
9°
14
Overcast
7°
15
Overcast
7°
16
Overcast
9°
17
Overcast
10°
18
Overcast
9°
19
Sunny
8°
20
Sunny
6°
21
Weather Alert Sunny
12°
22
Sunny
5°
23
Overcast
9°
24
Cloudy
8°
25
Moderate rain
7°
26
Patchy rain possible
17°
27
Sunny
7°
28
Partly cloudy
12°
29
Sunny
4°
30
Moderate snow
3°
31
Moderate rain
4°

Temperatures trend during December in Washington County

See the weather trend as well as the moving average line

December weather in Washington County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 8° /1° 0.2 mm 0 cm
Dec. 2 Sunny
Sunny
 10° /2° 15 mm 0 cm
Dec. 3 Sunny
Sunny
 12° /3° 4.7 mm 0 cm
Dec. 4 Overcast
Overcast
 9° /2° 0 mm 0 cm
Dec. 5 Overcast
Overcast
 7° /-1° 2.5 mm 1.5 cm
Dec. 6 Moderate rain at times
Moderate rain at times
 9° /2° 3.3 mm 0 cm
Dec. 7 Overcast
Overcast
 8° /1° 0.3 mm 0 cm
Dec. 8 Overcast
Overcast
 10° /2° 0.3 mm 0 cm
Dec. 9 Overcast
Overcast
 7° /-1° 3.6 mm 0 cm
Dec. 10 Overcast
Overcast
 11° /3° 6.2 mm 0 cm
Dec. 11 Overcast
Overcast
 11° /3° 21.4 mm 0 cm
Dec. 12 Overcast
Overcast
 8° /1° 0 mm 0 cm
Dec. 13 Cloudy
Cloudy
 9° /1° 0.1 mm 0 cm
Dec. 14 Overcast
Overcast
 7° /-1° 9.8 mm 1.4 cm
Dec. 15 Overcast
Overcast
 7° /-1° 7.4 mm 0.8 cm
Dec. 16 Overcast
Overcast
 9° /2° 7.4 mm 0 cm
Dec. 17 Overcast
Overcast
 10° /4° 9.2 mm 1.7 cm
Dec. 18 Overcast
Overcast
 9° /1° 4.3 mm 0 cm
Dec. 19 Sunny
Sunny
 8° /0° 5.3 mm 0 cm
Dec. 20 Sunny
Sunny
 6° /-1° 0.2 mm 0 cm
Dec. 21 Sunny
Sunny
 12° /-2° 0 mm 0 cm
Dec. 22 Sunny
Sunny
 5° /-5° 0 mm 0 cm
Dec. 23 Overcast
Overcast
 9° /0° 0.1 mm 0 cm
Dec. 24 Cloudy
Cloudy
 8° /4° 0 mm 0 cm
Dec. 25 Moderate rain
Moderate rain
 7° /3° 6 mm 0 cm
Dec. 26 Patchy rain possible
Patchy rain possible
 17° /8° 0.6 mm 0 cm
Dec. 27 Sunny
Sunny
 7° /2° 0 mm 0 cm
Dec. 28 Partly cloudy
Partly cloudy
 12° /2° 0 mm 0 cm
Dec. 29 Sunny
Sunny
 4° /-1° 0 mm 0 cm
Dec. 30 Moderate snow
Moderate snow
 3° /-1° 1.3 mm 1 cm
Dec. 31 Moderate rain
Moderate rain
 4° /0° 14.1 mm 0 cm
Next
Important Notice
Our weather forecast for Washington County in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Washington County forecast closer to your planned date for the most up-to-date weather information.
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Washington County in December - FAQ

What are the expected maximum and minimum temperatures in Washington County during December?
Prepare for cooler days with highs just around 9° and colder nights, dipping below 2°.
How much rainfall should be expected in Washington County during December?
Significant rainfall exceeding 132.5 mm is expected in Washington County during December, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Washington County in December 2025?
Washington County experiences an average snowfall of 3.242 cm during December, occurring over 3 days.
What are the typical wind conditions in Washington County during December?
The average wind speed in Washington County during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

Washington County snow forecast December 2025

Track daily snowfall levels and discover Washington County’s snowy potential this December ❄️
On average, Washington County sees 3 snowy days during December, with approximately 3.2 cm of total snowfall.

December rainfall patterns in Washington County

Explore the daily rainfall trends and prepare for Washington Countys December weather 💧
Typically, Washington County has 15 rainy days in December with a total of 132.5 mm of rainfall.
Top locations in Washington County
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FayettevilleJohnson CitySouth KingstownWashingtonZion National Park
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Location coordinates Where is Washington County?

Get accurate weather forecasts for Washington County, located at latitude 38.895 and longitude -77.036. Stay updated with localized weather information tailored for Washington County.

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