Philadelphia County (Philadelphia)
December
Weather in Philadelphia County for December 2025
Your guide to Philadelphia County weather in December - trends and predictions
With an average of 2 snowy days, Philadelphia County usually enjoys a light touch of snow in December.
In general, the average temperature in Philadelphia County at the beginning of December is 8.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 8.1 °F by the end of December.
Philadelphia County in December brings notable rainfall, with an average of 19 rainy days and a total precipitation of 136 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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10
Dry days
19
Rainy days
2
Snow days
8°/1°
Temperatures
17 km/h
Avg max wind
68 %
Avg humidity
Philadelphia County in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  7° | 2  10° | 3  12° | 4  8° | 5 7° | 6 11° | |
| 7 7° | 8 9° | 9 8° | 10 11° | 11 13° | 12  8° | 13 8° |
| 14 7° | 15 7° | 16  9° | 17  9° | 18 8° | 19 6° | 20 5° |
| 21 5° | 22 6° | 23 6° | 24  6° | 25 8° | 26 5° | 27 5° |
| 28 9° | 29 10° | 30 10° | 31 10° |
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Temperatures trend during December in Philadelphia 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 | Overcast | 7° /0° | 0.5 mm | 0 cm | |
| Dec. 2 | Sunny | 10° /2° | 0.3 mm | 0 cm | |
| Dec. 3 | Partly cloudy | 12° /3° | 10.7 mm | 0 cm | |
| Dec. 4 | Cloudy | 8° /1° | 0 mm | 0 cm | |
| Dec. 5 | Partly cloudy | 7° /0° | 2.6 mm | 0 cm | |
| Dec. 6 | Overcast | 11° /1° | 3.1 mm | 0 cm | |
| Dec. 7 | Partly cloudy | 7° /2° | 0.8 mm | 0 cm | |
| Dec. 8 | Overcast | 9° /2° | 0.1 mm | 0 cm | |
| Dec. 9 | Overcast | 8° /1° | 5.9 mm | 0 cm | |
| Dec. 10 | Overcast | 11° /1° | 8.9 mm | 0 cm | |
| Dec. 11 | Overcast | 13° /4° | 25.7 mm | 0 cm | |
| Dec. 12 | Patchy rain possible | 8° /2° | 0.9 mm | 0 cm | |
| Dec. 13 | Partly cloudy | 8° /1° | 0.2 mm | 0 cm | |
| Dec. 14 | Sunny | 7° /-1° | 3.3 mm | 0 cm | |
| Dec. 15 | Overcast | 7° /0° | 5.1 mm | 0 cm | |
| Dec. 16 | Moderate or heavy snow showers | 9° /3° | 8.8 mm | 2.5 cm | |
| Dec. 17 | Moderate snow | 9° /4° | 8.2 mm | 1.3 cm | |
| Dec. 18 | Cloudy | 8° /1° | 13.2 mm | 0 cm | |
| Dec. 19 | Cloudy | 6° /-1° | 0.8 mm | 0 cm | |
| Dec. 20 | Sunny | 5° /-1° | 1.4 mm | 0 cm | |
| Dec. 21 | Sunny | 5° /-1° | 1 mm | 0.4 cm | |
| Dec. 22 | Overcast | 6° /-2° | 3.2 mm | 0 cm | |
| Dec. 23 | Partly cloudy | 6° /-3° | 2.1 mm | 0 cm | |
| Dec. 24 | Heavy rain at times | 6° /-1° | 4.3 mm | 0.2 cm | |
| Dec. 25 | Partly cloudy | 8° /0° | 5.8 mm | 0 cm | |
| Dec. 26 | Partly cloudy | 5° /-2° | 0 mm | 0 cm | |
| Dec. 27 | Cloudy | 5° /-1° | 6.8 mm | 0 cm | |
| Dec. 28 | Cloudy | 9° /2° | 11.4 mm | 0 cm | |
| Dec. 29 | Sunny | 10° /3° | 1.6 mm | 0 cm | |
| Dec. 30 | Partly cloudy | 10° /3° | 7.7 mm | 0 cm | |
| Dec. 31 | Heavy rain at times | 10° /3° | 3.2 mm | 0 cm | |
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Important Notice
Our weather forecast for Philadelphia 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 Philadelphia County forecast closer to your planned date for the most up-to-date weather information.
Philadelphia County in December - FAQ
What are the expected maximum and minimum temperatures in Philadelphia County during December?
Prepare for cooler days with highs just around 8° and colder nights, dipping below 1°.
How much rainfall should be expected in Philadelphia County during December?
Significant rainfall exceeding 136 mm is expected in Philadelphia County during December, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Philadelphia County in December 2025?
Philadelphia County experiences an average snowfall of 4.845 cm during December, occurring over 2 days.
What are the typical wind conditions in Philadelphia County during December?
The average wind speed in Philadelphia County during December is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
Philadelphia County snow forecast December 2025
Track daily snowfall levels and discover Philadelphia County’s snowy potential this December ❄️
December rainfall patterns in Philadelphia County
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Where is Philadelphia County?Get accurate weather forecasts for Philadelphia County, located at latitude 39.952 and longitude -75.164. Stay updated with localized weather information tailored for Philadelphia County.
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