Arlington County (Arlington)
December
Weather in Arlington County for December 2025
Your guide to Arlington County weather in December - trends and predictions
In general, the average temperature in Arlington County at the beginning of December is 7.7 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 9.7 °F by the end of December.
The climate of Arlington County in December is notably wet, with an average of 11 rainy days, and a total of 165.2 mm of precipitation.
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Temperatures
Rain 🌧️
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20
Dry days
11
Rainy days
0
Snow days
9°/3°
Temperatures
15 km/h
Avg max wind
69 %
Avg humidity
Arlington County in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  8° | 2  9° | 3  11° | 4  9° | 5 6° | 6  4° | |
| 7 7° | 8  14° | 9 12° | 10  15° | 11 9° | 12  7° | 13 6° |
| 14  4° | 15 8° | 16 10° | 17  13° | 18 11° | 19 6° | 20 6° |
| 21 5° | 22 4° | 23 4° | 24 6° | 25 8° | 26 7° | 27 9° |
| 28 11° | 29 12° | 30 11° | 31 10° |
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Temperatures trend during December in Arlington County
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 | Light rain | 8° /2° | 0.5 mm | 0 cm | |
| Dec. 2 | Fog | 9° /2° | 0.2 mm | 0 cm | |
| Dec. 3 | Moderate or heavy rain with thunder | 11° /2° | 8.5 mm | 0 cm | |
| Dec. 4 | Overcast | 9° /2° | 0 mm | 0 cm | |
| Dec. 5 | Overcast | 6° /0° | 0 mm | 0 cm | |
| Dec. 6 | Light sleet | 4° /-1° | 2.2 mm | 0 cm | |
| Dec. 7 | Overcast | 7° /-2° | 0 mm | 0 cm | |
| Dec. 8 | Cloudy | 14° /1° | 0 mm | 0 cm | |
| Dec. 9 | Fog | 12° /2° | 9.1 mm | 0 cm | |
| Dec. 10 | Light rain shower | 15° /6° | 15.6 mm | 0 cm | |
| Dec. 11 | Light sleet | 9° /2° | 59.6 mm | 0 cm | |
| Dec. 12 | Sunny | 7° /0° | 0 mm | 0 cm | |
| Dec. 13 | Cloudy | 6° /1° | 0 mm | 0 cm | |
| Dec. 14 | Partly cloudy | 4° /-1° | 0 mm | 0 cm | |
| Dec. 15 | Sunny | 8° /0° | 0 mm | 0 cm | |
| Dec. 16 | Overcast | 10° /3° | 2.6 mm | 0 cm | |
| Dec. 17 | Moderate rain | 13° /6° | 20.2 mm | 0 cm | |
| Dec. 18 | Light drizzle | 11° /3° | 10.1 mm | 0 cm | |
| Dec. 19 | Overcast | 6° /1° | 1.1 mm | 0 cm | |
| Dec. 20 | Sunny | 6° /0° | 0 mm | 0 cm | |
| Dec. 21 | Sunny | 5° /0° | 0 mm | 0 cm | |
| Dec. 22 | Overcast | 4° /-2° | 0 mm | 0 cm | |
| Dec. 23 | Overcast | 4° /-3° | 0 mm | 0 cm | |
| Dec. 24 | Patchy rain possible | 6° /1° | 1.8 mm | 0.5 cm | |
| Dec. 25 | Partly cloudy | 8° /2° | 0 mm | 0 cm | |
| Dec. 26 | Light rain | 7° /3° | 1.7 mm | 0 cm | |
| Dec. 27 | Moderate or heavy rain with thunder | 9° /4° | 23.6 mm | 0 cm | |
| Dec. 28 | Mist | 11° /6° | 6.1 mm | 0 cm | |
| Dec. 29 | Light drizzle | 12° /5° | 2.7 mm | 0 cm | |
| Dec. 30 | Overcast | 11° /5° | 11.2 mm | 0 cm | |
| Dec. 31 | Sunny | 10° /2° | 0 mm | 0 cm | |
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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.
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 9° and colder nights, dipping below 3°.
How much rainfall should be expected in Arlington County during December?
Significant rainfall exceeding 165.2 mm is expected in Arlington County during December, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Arlington County in December 2025?
Arlington County typically sees 0.04 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 ❄️
December rainfall patterns in Arlington County
Explore the daily rainfall trends and prepare for Arlington Countys December weather 💧
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