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United States weather

Weather in Philadelphia, Pennsylvania for December 2025

Your guide to Philadelphia weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 4 snowy days, Philadelphia usually enjoys a light touch of snow in December.
    According to Philadelphia snow forecast for December 2025, 1 snowy day is expected until the end of the month at Friday, December 26.

    • Temperatures

  • Until now, December 2025 in Philadelphia has been significantly cooler than historical averages by -5.2 °F, with average temperature of 2.8 °F.

  • The forecast for the next days in Philadelphia predicts a temperature of 2.7 °F, which is cooler than the historical average.

  • In general, the average temperature in Philadelphia at the beginning of December is 7.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 2.7 °F by the end of December.

    • More

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

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 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
Sunny
-1°
16
Partly cloudy
3°
17
Partly cloudy
5°
18
Patchy rain possible
5°
19
Moderate rain
13°
20
Partly cloudy
2°
21
Patchy rain possible
8°
22
Sunny
1°
23
Partly cloudy
4°
24
Overcast
9°
25
Sunny
-1°
26
Heavy snow
-0°
27
Sunny
-7°
28
Sunny
-3°
29
Sunny
10°
30
Partly cloudy
10°
31
Heavy rain at times
10°

Temperatures trend during December in Philadelphia

See the weather trend as well as the moving average line

December weather in Philadelphia 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 Sunny
Sunny
 -1° /-10° 0 mm 0 cm
Dec. 16 Partly cloudy
Partly cloudy
 3° /-5° 0 mm 0 cm
Dec. 17 Partly cloudy
Partly cloudy
 5° /-2° 0 mm 0 cm
Dec. 18 Patchy rain possible
Patchy rain possible
 5° /-2° 1.2 mm 0 cm
Dec. 19 Moderate rain
Moderate rain
 13° /-1° 18.5 mm 0 cm
Dec. 20 Partly cloudy
Partly cloudy
 2° /-2° 0 mm 0 cm
Dec. 21 Patchy rain possible
Patchy rain possible
 8° /3° 0.4 mm 0 cm
Dec. 22 Sunny
Sunny
 1° /-2° 0 mm 0 cm
Dec. 23 Partly cloudy
Partly cloudy
 4° /-1° 0 mm 0 cm
Dec. 24 Overcast
Overcast
 9° /3° 0.1 mm 0 cm
Dec. 25 Sunny
Sunny
 -1° /-3° 0 mm 0 cm
Dec. 26 Heavy snow
Heavy snow
 0° /-3° 2.7 mm 2 cm
Dec. 27 Sunny
Sunny
 -7° /-9° 0 mm 0 cm
Dec. 28 Sunny
Sunny
 -3° /-9° 0 mm 0 cm
Dec. 29 Sunny
Sunny
 10° /3° 1.6 mm 0 cm
Dec. 30 Partly cloudy
Partly cloudy
 10° /3° 7.7 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 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 forecast closer to your planned date for the most up-to-date weather information.
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Philadelphia in December - FAQ

What are the expected maximum and minimum temperatures in Philadelphia 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 during December?
Significant rainfall exceeding 147.4 mm is expected in Philadelphia during December, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Philadelphia in December 2025?
Philadelphia experiences an average snowfall of 4.472 cm during December, occurring over 4 days.
What are the typical wind conditions in Philadelphia during December?
The average wind speed in Philadelphia during December is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

Philadelphia snow forecast December 2025

Track daily snowfall levels and discover Philadelphia’s snowy potential this December ❄️
On average, Philadelphia sees 4 snowy days during December, with approximately 4.5 cm of total snowfall.

December rainfall patterns in Philadelphia

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

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Location coordinates Where is Philadelphia?

Get accurate weather forecasts for Philadelphia, located at latitude 39.952 and longitude -75.164. Stay updated with localized weather information tailored for Philadelphia.

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