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Weather in Arlington County, Virginia for December 2025

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

    Snow Forecast ❄️

  • Snowfall in Arlington County during December is quite rare, with fewer than 2 snowy days on average.
    According to Arlington County snow forecast for December 2025, 2 snowy days are expected until the end of the month. The closest date with snow is Saturday, December 27.

    • Temperatures

  • Until now, December 2025 in Arlington County is cooler than usual, with temperatures averaging 3.5 °F, this is -3.6 °F below the typical seasonal average.

  • Expect cooler weather in the next days in Arlington County with the forecast suggesting a temperature of 6.3 °F, lower than the historical average.

  • In general, the average temperature in Arlington County at the beginning of December is 6.9 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 4.1 °F by the end of December.

    • Rain 🌧️

  • The climate of Arlington County in December is notably wet, with an average of 14 rainy days, and a total of 176.7 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
16
Dry days
Average rainy days
14
Rainy days
Average snowy days
1
Snow days
Average temperatures
8°/2°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Arlington County Weather December

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

Temperatures trend during December in Arlington County

See the weather trend as well as the moving average line

December weather in Arlington County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Light rain
Light rain
 7° /1° 0.3 mm 0 cm
Dec. 2 Fog
Fog
 7° /2° 25 mm 0 cm
Dec. 3 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 10° /1° 5.7 mm 0 cm
Dec. 4 Overcast
Overcast
 8° /1° 0 mm 0 cm
Dec. 5 Overcast
Overcast
 4° /-2° 4.2 mm 2.5 cm
Dec. 6 Light sleet
Light sleet
 6° /-1° 1.5 mm 0 cm
Dec. 7 Overcast
Overcast
 6° /-1° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 10° /0° 0 mm 0 cm
Dec. 9 Fog
Fog
 8° /-1° 6.1 mm 0 cm
Dec. 10 Light rain shower
Light rain shower
 12° /4° 10.4 mm 0 cm
Dec. 11 Light sleet
Light sleet
 7° /1° 39.7 mm 0 cm
Dec. 12 Sunny
Sunny
 5° /-1° 0 mm 0 cm
Dec. 13 Cloudy
Cloudy
 5° /0° 0 mm 0 cm
Dec. 14 Partly cloudy
Partly cloudy
 3° /-2° 7.1 mm 2.8 cm
Dec. 15 Sunny
Sunny
 6° /-2° 0 mm 0 cm
Dec. 16 Overcast
Overcast
 9° /1° 1.8 mm 0 cm
Dec. 17 Overcast
Overcast
 11° /4° 13.5 mm 0 cm
Dec. 18 Patchy rain possible
Patchy rain possible
 15° /-1° 1.4 mm 0 cm
Dec. 19 Heavy rain
Heavy rain
 13° /0° 57.4 mm 0 cm
Dec. 20 Sunny
Sunny
 4° /-3° 0 mm 0 cm
Dec. 21 Sunny
Sunny
 10° /2° 0 mm 0 cm
Dec. 22 Sunny
Sunny
 3° /-2° 0 mm 0 cm
Dec. 23 Sunny
Sunny
 6° /-2° 0 mm 0 cm
Dec. 24 Patchy rain possible
Patchy rain possible
 8° /3° 0.1 mm 0 cm
Dec. 25 Moderate rain
Moderate rain
 11° /4° 9.2 mm 0 cm
Dec. 26 Sunny
Sunny
 10° /3° 0 mm 0 cm
Dec. 27 Partly cloudy
Partly cloudy
 3° /-1° 0 mm 0 cm
Dec. 28 Partly cloudy
Partly cloudy
 1° /-4° 0 mm 0 cm
Dec. 29 Sunny
Sunny
 -1° /-5° 0 mm 0 cm
Dec. 30 Sunny
Sunny
 2° /-3° 0 mm 0 cm
Dec. 31 Sunny
Sunny
 3° /-4° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Arlington 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 Arlington County forecast closer to your planned date for the most up-to-date weather information.
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Arlington County in December - FAQ

What are the expected maximum and minimum temperatures in Arlington County during December?
Prepare for cooler days with highs just around 8° and colder nights, dipping below 2°.
How much rainfall should be expected in Arlington County during December?
Significant rainfall exceeding 176.7 mm is expected in Arlington County during December, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Arlington County in December 2025?
Arlington County typically sees 0.525 cm of snowfall during December.
What are the typical wind conditions in Arlington County during December?
The average wind speed in Arlington County during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

Arlington County snow forecast December 2025

Track daily snowfall levels and discover Arlington County’s snowy potential this December ❄️
On average, Arlington County sees 1 snowy days during December, with approximately 0.5 cm of total snowfall.

December rainfall patterns in Arlington County

Explore the daily rainfall trends and prepare for Arlington Countys December weather 💧
Typically, Arlington County has 14 rainy days in December with a total of 176.7 mm of rainfall.
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Location coordinates Where is Arlington County?

Get accurate weather forecasts for Arlington County, located at latitude 38.881 and longitude -77.104. Stay updated with localized weather information tailored for Arlington County.

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