Pennsylvania (Philadelphia)
January
Weather in Pennsylvania for January 2026
Your guide to Pennsylvania weather in January - trends and predictions
Pennsylvania typically experiences moderate snowfall in January, with an average of 8 snowy days.
In general, the average temperature in Pennsylvania at the beginning of January is 6.9 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 4.7 °F by the end of January.
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Snow Forecast ❄️
Temperatures
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11
Dry days
12
Rainy days
8
Snow days
5°/-1°
Temperatures
18 km/h
Avg max wind
66 %
Avg humidity
Pennsylvania Weather January
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  10° | 2  11° | 3 7° | ||||
| 4  7° | 5 6° | 6  4° | 7 3° | 8 3° | 9 6° | 10 6° |
| 11 4° | 12 7° | 13 9° | 14 4° | 15 3° | 16  4° | 17 4° |
| 18  5° | 19 5° | 20 2° | 21 -0° | 22 2° | 23 2° | 24 4° |
| 25 6° | 26 5° | 27 6° | 28 4° | 29 4° | 30 4° | 31 4° |
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Temperatures trend during January in Pennsylvania
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Jan. 1 | Heavy rain at times | 10° /4° | 6.8 mm | 0 cm | |
| Jan. 2 | Overcast | 11° /3° | 2.5 mm | 0 cm | |
| Jan. 3 | Heavy rain at times | 7° /0° | 5.1 mm | 1.6 cm | |
| Jan. 4 | Sunny | 7° /1° | 0.8 mm | 0 cm | |
| Jan. 5 | Overcast | 6° /-1° | 0.3 mm | 0 cm | |
| Jan. 6 | Partly cloudy | 4° /0° | 5.3 mm | 1.6 cm | |
| Jan. 7 | Sunny | 3° /-2° | 2 mm | 1.3 cm | |
| Jan. 8 | Overcast | 3° /-3° | 0 mm | 0 cm | |
| Jan. 9 | Partly cloudy | 6° /-3° | 10.9 mm | 0 cm | |
| Jan. 10 | Overcast | 6° /-2° | 0.7 mm | 0 cm | |
| Jan. 11 | Overcast | 4° /-2° | 1.8 mm | 1.3 cm | |
| Jan. 12 | Sunny | 7° /-2° | 2.4 mm | 0 cm | |
| Jan. 13 | Sunny | 9° /0° | 4.6 mm | 0 cm | |
| Jan. 14 | Partly cloudy | 4° /-3° | 0 mm | 0 cm | |
| Jan. 15 | Overcast | 3° /-4° | 0.5 mm | 0 cm | |
| Jan. 16 | Patchy rain possible | 4° /-4° | 3.3 mm | 0.8 cm | |
| Jan. 17 | Partly cloudy | 4° /-2° | 4.8 mm | 0 cm | |
| Jan. 18 | Cloudy | 5° /-1° | 0.1 mm | 0 cm | |
| Jan. 19 | Sunny | 5° /-1° | 7.3 mm | 2.1 cm | |
| Jan. 20 | Overcast | 2° /-4° | 2 mm | 0.7 cm | |
| Jan. 21 | Overcast | 0° /-6° | 0 mm | 0 cm | |
| Jan. 22 | Partly cloudy | 2° /-6° | 1.3 mm | 0 cm | |
| Jan. 23 | Cloudy | 2° /-3° | 0.7 mm | 0 cm | |
| Jan. 24 | Partly cloudy | 4° /-3° | 0.5 mm | 0 cm | |
| Jan. 25 | Cloudy | 6° /-1° | 5 mm | 0 cm | |
| Jan. 26 | Overcast | 5° /0° | 1.7 mm | 0 cm | |
| Jan. 27 | Cloudy | 6° /-2° | 0.3 mm | 0 cm | |
| Jan. 28 | Overcast | 4° /-1° | 4.8 mm | 0.2 cm | |
| Jan. 29 | Overcast | 4° /-3° | 3 mm | 2 cm | |
| Jan. 30 | Overcast | 4° /-4° | 0 mm | 0 cm | |
| Jan. 31 | Patchy rain possible | 4° /-3° | 6.1 mm | 0.9 cm | |
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Important Notice
Our weather forecast for Pennsylvania 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 Pennsylvania forecast closer to your planned date for the most up-to-date weather information.
Pennsylvania in January - FAQ
What are the expected maximum and minimum temperatures in Pennsylvania during January?
Brace for cold days with temperatures not exceeding 5° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Pennsylvania during January?
Moderate rainfall is anticipated in Pennsylvania during January, with a total of 90.9 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
Will it snow in Pennsylvania in January 2026?
Pennsylvania experiences an average snowfall of 9.995 cm during January, occurring over 8 days.
What are the typical wind conditions in Pennsylvania during January?
The average wind speed in Pennsylvania during January is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
Pennsylvania snow forecast January 2026
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January rainfall patterns in Pennsylvania
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