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United States weather

Weather in Philadelphia, Pennsylvania for January 2026

Your guide to Philadelphia weather in January - trends and predictions

    Official Weather Alert ⚠️

  • Cold Weather Advisory - See hour by hour.

    • Snow Forecast ❄️

  • Philadelphia typically experiences moderate snowfall in January, with an average of 10 snowy days.
    According to Philadelphia snow forecast for January 2026, 1 snowy day is expected until the end of the month at Saturday, January 31.

    • Temperatures

  • Until now, January 2026 in Philadelphia is slightly cooler than the historical average by -1.8 °F.

  • The forecast for the upcoming days in Philadelphia predicts a temperature of -4.9 °F, which is slightly above the historical average.

  • In general, the average temperature in Philadelphia at the beginning of January is 6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of -3.6 °F by the end of January.

    • More

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

Average dry days
12
Dry days
Average rainy days
9
Rainy days
Average snowy days
10
Snow days
Average temperatures
4°/-1°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
67 %
Avg humidity

Philadelphia Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Heavy rain at times
8°
2
Overcast
9°
3
Cloudy
6°
4
Overcast
6°
5
Overcast
5°
6
Partly cloudy
4°
7
Overcast
4°
8
Sunny
4°
9
Partly cloudy
6°
10
Overcast
7°
11
Overcast
4°
12
Sunny
7°
13
Overcast
9°
14
Overcast
5°
15
Overcast
4°
16
Sunny
3°
17
Partly cloudy
4°
18
Cloudy
5°
19
Overcast
4°
20
Overcast
1°
21
Partly cloudy
0°
22
Partly cloudy
3°
23
Cloudy
2°
24
Overcast
2°
25
Cloudy
5°
26
Overcast
4°
27
Weather Alert Sunny
-5°
28
Partly cloudy
-8°
29
Sunny
-6°
30
Partly cloudy
-8°
31
Partly cloudy
-7°

Temperatures trend during January in Philadelphia

See the weather trend as well as the moving average line

January weather in Philadelphia day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
Jan. 1 Heavy rain at times
Heavy rain at times
 8° /2° 5.6 mm 0 cm
Jan. 2 Overcast
Overcast
 9° /1° 2.1 mm 0 cm
Jan. 3 Cloudy
Cloudy
 6° /-1° 4.3 mm 1.4 cm
Jan. 4 Overcast
Overcast
 6° /0° 0.7 mm 0 cm
Jan. 5 Overcast
Overcast
 5° /-1° 0.3 mm 0 cm
Jan. 6 Partly cloudy
Partly cloudy
 4° /0° 4.5 mm 1.4 cm
Jan. 7 Overcast
Overcast
 4° /-1° 1.7 mm 1.1 cm
Jan. 8 Sunny
Sunny
 4° /-2° 0 mm 0 cm
Jan. 9 Partly cloudy
Partly cloudy
 6° /-2° 9 mm 0 cm
Jan. 10 Overcast
Overcast
 7° /-1° 11.8 mm 0 cm
Jan. 11 Overcast
Overcast
 4° /-2° 2.5 mm 1.1 cm
Jan. 12 Sunny
Sunny
 7° /-2° 2 mm 0 cm
Jan. 13 Overcast
Overcast
 9° /0° 3.8 mm 0 cm
Jan. 14 Overcast
Overcast
 5° /-2° 0 mm 0 cm
Jan. 15 Overcast
Overcast
 4° /-4° 1.6 mm 0.5 cm
Jan. 16 Sunny
Sunny
 3° /-4° 2.7 mm 0.6 cm
Jan. 17 Partly cloudy
Partly cloudy
 4° /-2° 4 mm 0 cm
Jan. 18 Cloudy
Cloudy
 5° /-1° 0.1 mm 0 cm
Jan. 19 Overcast
Overcast
 4° /-2° 6.1 mm 1.8 cm
Jan. 20 Overcast
Overcast
 1° /-5° 1.7 mm 0.6 cm
Jan. 21 Partly cloudy
Partly cloudy
 0° /-6° 0 mm 0 cm
Jan. 22 Partly cloudy
Partly cloudy
 3° /-5° 1.1 mm 0 cm
Jan. 23 Cloudy
Cloudy
 2° /-4° 0.6 mm 0 cm
Jan. 24 Overcast
Overcast
 2° /-4° 0.4 mm 0 cm
Jan. 25 Cloudy
Cloudy
 5° /-2° 22.1 mm 12.9 cm
Jan. 26 Overcast
Overcast
 4° /-1° 4.5 mm 0 cm
Jan. 27 Sunny
Sunny
 -5° /-17° 0 mm 0 cm
Jan. 28 Partly cloudy
Partly cloudy
 -8° /-14° 0 mm 0 cm
Jan. 29 Sunny
Sunny
 -6° /-12° 0 mm 0 cm
Jan. 30 Partly cloudy
Partly cloudy
 -8° /-20° 0 mm 0 cm
Jan. 31 Partly cloudy
Partly cloudy
 -7° /-22° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Philadelphia in January 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.
Change Month
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Philadelphia in January - FAQ

What are the expected maximum and minimum temperatures in Philadelphia during January?

Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Philadelphia during January?

Moderate rainfall is anticipated in Philadelphia during January, with a total of 84.8 mm spread over approximately 9 days. Considering plans for rainy days is advisable.

Will it snow in Philadelphia in January 2026?

Philadelphia experiences an average snowfall of 12.488 cm during January, occurring over 10 days.

What are the typical wind conditions in Philadelphia during January?

The average wind speed in Philadelphia during January is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

Philadelphia snow forecast January 2026

Track daily snowfall levels and discover Philadelphia’s snowy potential this January ❄️
On average, Philadelphia sees 10 snowy days during January, with approximately 12.5 cm of total snowfall.

January rainfall patterns in Philadelphia

Explore the daily rainfall trends and prepare for Philadelphias January weather 💧
Typically, Philadelphia has 9 rainy days in January with a total of 84.8 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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