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Weather in Philadelphia County, Pennsylvania for December 2025

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

    Snow Forecast ❄️

  • With an average of 4 snowy days, Philadelphia County usually enjoys a light touch of snow in December.
    According to Philadelphia County snow forecast for December 2025, no snow is expected until the end of the month.

    • Temperatures

  • Until now, December 2025 in Philadelphia County has been significantly cooler than historical averages by -5.3 °F, with average temperature of 2.5 °F.

  • Expect cooler weather in the next days in Philadelphia County with the forecast suggesting a temperature of 5.9 °F, lower than the historical average.

  • In general, the average temperature in Philadelphia County at the beginning of December is 7.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 7.1 °F by the end of December.

    • More

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Average dry days
8
Dry days
Average rainy days
19
Rainy days
Average snowy days
4
Snow days
Average temperatures
8°/1°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
70 %
Avg humidity

Philadelphia County Weather December

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

Temperatures trend during December in Philadelphia County

See the weather trend as well as the moving average line

December weather in Philadelphia County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 7° /0° 0.4 mm 0 cm
Dec. 2 Sunny
Sunny
 9° /1° 19.3 mm 0 cm
Dec. 3 Partly cloudy
Partly cloudy
 10° /2° 8.5 mm 0 cm
Dec. 4 Cloudy
Cloudy
 7° /0° 0 mm 0 cm
Dec. 5 Partly cloudy
Partly cloudy
 6° /-2° 2.6 mm 0.4 cm
Dec. 6 Overcast
Overcast
 9° /1° 2.5 mm 0 cm
Dec. 7 Partly cloudy
Partly cloudy
 7° /1° 0.6 mm 0 cm
Dec. 8 Overcast
Overcast
 8° /1° 0 mm 0 cm
Dec. 9 Overcast
Overcast
 7° /-1° 4.7 mm 0 cm
Dec. 10 Overcast
Overcast
 10° /1° 7.1 mm 0 cm
Dec. 11 Overcast
Overcast
 11° /3° 20.5 mm 0 cm
Dec. 12 Overcast
Overcast
 7° /1° 0.8 mm 0 cm
Dec. 13 Partly cloudy
Partly cloudy
 7° /0° 0.1 mm 0 cm
Dec. 14 Sunny
Sunny
 6° /-1° 6.3 mm 2.4 cm
Dec. 15 Overcast
Overcast
 6° /-2° 4.2 mm 0 cm
Dec. 16 Partly cloudy
Partly cloudy
 8° /2° 7.3 mm 2.1 cm
Dec. 17 Partly cloudy
Partly cloudy
 5° /-6° 0 mm 0 cm
Dec. 18 Mist
Mist
 5° /-6° 0 mm 0 cm
Dec. 19 Heavy rain
Heavy rain
 13° /1° 77.8 mm 0 cm
Dec. 20 Sunny
Sunny
 3° /-1° 0 mm 0 cm
Dec. 21 Sunny
Sunny
 8° /2° 0 mm 0 cm
Dec. 22 Sunny
Sunny
 1° /-2° 0 mm 0 cm
Dec. 23 Light freezing rain
Light freezing rain
 1° /-3° 0.4 mm 0 cm
Dec. 24 Cloudy
Cloudy
 7° /1° 0 mm 0 cm
Dec. 25 Patchy rain possible
Patchy rain possible
 6° /0° 0.7 mm 0 cm
Dec. 26 Patchy rain possible
Patchy rain possible
 8° /4° 1.5 mm 0 cm
Dec. 27 Patchy rain possible
Patchy rain possible
 9° /6° 5 mm 0 cm
Dec. 28 Patchy rain possible
Patchy rain possible
 10° /4° 1.6 mm 0 cm
Dec. 29 Sunny
Sunny
 3° /-1° 0 mm 0 cm
Dec. 30 Overcast
Overcast
 4° /-1° 0 mm 0 cm
Dec. 31 Heavy rain at times
Heavy rain at times
 10° /3° 3.2 mm 0 cm
Next
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.
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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 147.4 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 4.472 cm during December, occurring over 4 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 ❄️
On average, Philadelphia County sees 4 snowy days during December, with approximately 4.5 cm of total snowfall.

December rainfall patterns in Philadelphia County

Explore the daily rainfall trends and prepare for Philadelphia Countys December weather 💧
Typically, Philadelphia County has 19 rainy days in December with a total of 147.4 mm of rainfall.
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Location coordinates 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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