City of Fairfax (Fairfax)
December
Weather in City of Fairfax for December 2025
Your guide to City of Fairfax weather in December - trends and predictions
With an average of 2 snowy days, City of Fairfax usually enjoys a light touch of snow in December.
In general, the average temperature in City of Fairfax at the beginning of December is 3.6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 8.4 °F by the end of December.
City of Fairfax experiences moderate rainfall in December, with an average of 6 rainy days and a total precipitation of 177 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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23
Dry days
6
Rainy days
2
Snow days
6°/1°
Temperatures
16 km/h
Avg max wind
73 %
Avg humidity
City of Fairfax in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  5° | 2  3° | 3 5° | 4  4° | 5 3° | 6  1° | |
| 7 4° | 8 12° | 9  10° | 10  11° | 11  10° | 12 5° | 13 4° |
| 14 0° | 15 4° | 16  7° | 17 12° | 18 9° | 19 8° | 20 3° |
| 21 2° | 22 0° | 23 0° | 24  4° | 25 2° | 26 3° | 27 5° |
| 28 7° | 29 16° | 30 15° | 31 11° |
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Temperatures trend during December in City of Fairfax
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 | Overcast | 5° /0° | 0 mm | 0 cm | |
| Dec. 2 | Sunny | 3° /-2° | 0 mm | 0 cm | |
| Dec. 3 | Sunny | 5° /-3° | 0 mm | 0 cm | |
| Dec. 4 | Cloudy | 4° /-2° | 0 mm | 0 cm | |
| Dec. 5 | Overcast | 3° /-1° | 0 mm | 0 cm | |
| Dec. 6 | Partly cloudy | 1° /-3° | 0 mm | 0 cm | |
| Dec. 7 | Overcast | 4° /-3° | 0 mm | 0 cm | |
| Dec. 8 | Overcast | 12° /0° | 0 mm | 0 cm | |
| Dec. 9 | Moderate or heavy rain shower | 10° /4° | 21.5 mm | 0 cm | |
| Dec. 10 | Fog | 11° /6° | 0 mm | 0 cm | |
| Dec. 11 | Moderate or heavy sleet | 10° /3° | 101.6 mm | 2.1 cm | |
| Dec. 12 | Sunny | 5° /0° | 0 mm | 0 cm | |
| Dec. 13 | Overcast | 4° /-1° | 0 mm | 0 cm | |
| Dec. 14 | Overcast | 0° /-1° | 0 mm | 0 cm | |
| Dec. 15 | Overcast | 4° /0° | 0 mm | 0 cm | |
| Dec. 16 | Light rain | 7° /3° | 6.3 mm | 0 cm | |
| Dec. 17 | Overcast | 12° /7° | 0 mm | 0 cm | |
| Dec. 18 | Fog | 9° /2° | 0 mm | 0 cm | |
| Dec. 19 | Sunny | 8° /1° | 3.2 mm | 0 cm | |
| Dec. 20 | Mist | 3° /1° | 0 mm | 0 cm | |
| Dec. 21 | Cloudy | 2° /-1° | 0 mm | 0 cm | |
| Dec. 22 | Sunny | 0° /-4° | 0 mm | 0 cm | |
| Dec. 23 | Overcast | 0° /-7° | 0 mm | 0 cm | |
| Dec. 24 | Patchy moderate snow | 4° /-2° | 3.7 mm | 1.1 cm | |
| Dec. 25 | Overcast | 2° /0° | 0 mm | 0 cm | |
| Dec. 26 | Cloudy | 3° /0° | 0 mm | 0 cm | |
| Dec. 27 | Overcast | 5° /1° | 0 mm | 0 cm | |
| Dec. 28 | Light rain | 7° /3° | 13.6 mm | 0 cm | |
| Dec. 29 | Mist | 16° /6° | 8.6 mm | 0 cm | |
| Dec. 30 | Partly cloudy | 15° /10° | 18.6 mm | 0 cm | |
| Dec. 31 | Fog | 11° /4° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for City of Fairfax 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 City of Fairfax forecast closer to your planned date for the most up-to-date weather information.
City of Fairfax in December - FAQ
What are the expected maximum and minimum temperatures in City of Fairfax during December?
Prepare for cooler days with highs just around 6° and colder nights, dipping below 1°.
How much rainfall should be expected in City of Fairfax during December?
Significant rainfall exceeding 177 mm is expected in City of Fairfax during December, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
Will it snow in City of Fairfax in December 2025?
City of Fairfax experiences an average snowfall of 3.2 cm during December, occurring over 2 days.
What are the typical wind conditions in City of Fairfax during December?
The average wind speed in City of Fairfax during December is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
City of Fairfax snow forecast December 2025
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December rainfall patterns in City of Fairfax
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