Allegheny County (Pittsburgh)
January
Weather in Allegheny County for January 2026
Your guide to Allegheny County weather in January - trends and predictions
The climate of Allegheny County in January is quite snowy, averaging 14 snowy days.
In general, the average temperature in Allegheny County at the beginning of January is 4 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 4.3 °F by the end of January.
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Snow Forecast ❄️
Temperatures
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4
Dry days
13
Rainy days
14
Snow days
4°/-1°
Temperatures
16 km/h
Avg max wind
80 %
Avg humidity
Allegheny County Weather January
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  7° | 2 5° | 3  7° | ||||
| 4 4° | 5  3° | 6 2° | 7  0° | 8 1° | 9 4° | 10 4° |
| 11 4° | 12 8° | 13 5° | 14  -2° | 15  -2° | 16 -0° | 17 2° |
| 18 2° | 19 4° | 20 -2° | 21  -3° | 22 -2° | 23 1° | 24 1° |
| 25  5° | 26 5° | 27 3° | 28 4° | 29 3° | 30 6° | 31 4° |
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Temperatures trend during January in Allegheny County
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 | Patchy rain possible | 7° /1° | 1.8 mm | 0.3 cm | |
| Jan. 2 | Patchy rain possible | 5° /1° | 0.8 mm | 0 cm | |
| Jan. 3 | Moderate or heavy rain shower | 7° /2° | 12.1 mm | 0.3 cm | |
| Jan. 4 | Moderate rain at times | 4° /0° | 1.1 mm | 0.1 cm | |
| Jan. 5 | Overcast | 3° /-3° | 0 mm | 0 cm | |
| Jan. 6 | Patchy rain possible | 2° /-2° | 19.5 mm | 13.4 cm | |
| Jan. 7 | Light snow showers | 0° /-3° | 1.2 mm | 0.9 cm | |
| Jan. 8 | Overcast | 1° /-4° | 0.5 mm | 0.3 cm | |
| Jan. 9 | Overcast | 4° /-3° | 7.4 mm | 0 cm | |
| Jan. 10 | Overcast | 4° /-3° | 1 mm | 0.5 cm | |
| Jan. 11 | Overcast | 4° /-2° | 3.9 mm | 2 cm | |
| Jan. 12 | Moderate or heavy rain shower | 8° /0° | 14.3 mm | 0 cm | |
| Jan. 13 | Patchy rain possible | 5° /-3° | 1 mm | 0 cm | |
| Jan. 14 | Cloudy | -2° /-7° | 0.3 mm | 0.1 cm | |
| Jan. 15 | Sunny | -2° /-8° | 0 mm | 0 cm | |
| Jan. 16 | Cloudy | 0° /-8° | 0.9 mm | 0.8 cm | |
| Jan. 17 | Overcast | 2° /-5° | 2.6 mm | 0 cm | |
| Jan. 18 | Overcast | 2° /-2° | 2.4 mm | 1.4 cm | |
| Jan. 19 | Moderate or heavy rain shower | 4° /-4° | 9.7 mm | 1.7 cm | |
| Jan. 20 | Patchy rain possible | -2° /-8° | 0.7 mm | 0.2 cm | |
| Jan. 21 | Light freezing rain | -3° /-9° | 0.2 mm | 0 cm | |
| Jan. 22 | Moderate or heavy rain shower | -2° /-10° | 1.9 mm | 0 cm | |
| Jan. 23 | Light freezing rain | 1° /-4° | 1.7 mm | 0 cm | |
| Jan. 24 | Overcast | 1° /-3° | 3.9 mm | 0 cm | |
| Jan. 25 | Moderate or heavy snow showers | 5° /-2° | 10.1 mm | 1.3 cm | |
| Jan. 26 | Light freezing rain | 5° /0° | 1.1 mm | 0 cm | |
| Jan. 27 | Overcast | 3° /-2° | 0.7 mm | 0 cm | |
| Jan. 28 | Overcast | 4° /0° | 8.5 mm | 1.4 cm | |
| Jan. 29 | Moderate rain at times | 3° /0° | 1.3 mm | 0.1 cm | |
| Jan. 30 | Overcast | 6° /-1° | 1.1 mm | 0.1 cm | |
| Jan. 31 | Light freezing rain | 4° /0° | 1.7 mm | 0.1 cm | |
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Important Notice
Our weather forecast for Allegheny County 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 Allegheny County forecast closer to your planned date for the most up-to-date weather information.
Allegheny County in January - FAQ
What are the expected maximum and minimum temperatures in Allegheny County 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 Allegheny County during January?
Significant rainfall exceeding 129.1 mm is expected in Allegheny County during January, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Allegheny County in January 2026?
Allegheny County experiences an average snowfall of 11.09 cm during January, occurring over 14 days.
What are the typical wind conditions in Allegheny County during January?
The average wind speed in Allegheny County during January is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
Allegheny County snow forecast January 2026
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January rainfall patterns in Allegheny County
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Where is Allegheny County?Get accurate weather forecasts for Allegheny County, located at latitude 40.441 and longitude -79.996. Stay updated with localized weather information tailored for Allegheny County.
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