Williamsport (PA)
January
Weather in Williamsport, Pennsylvania for January 2026
Your guide to Williamsport weather in January - trends and predictions
Cold Weather Advisory - See hour by hour.
The climate of Williamsport in January is quite snowy, averaging 11 snowy days.
According to Williamsport snow forecast for January 2026, no snow is expected until the end of the month.Until now, January 2026 in Williamsport is slightly cooler than the historical average by -1.3 °F.
In general, the average temperature in Williamsport at the beginning of January is 0.1 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of -1.7 °F by the end of January.
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Temperatures
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16
Dry days
4
Rainy days
11
Snow days
0°/-5°
Temperatures
17 km/h
Avg max wind
73 %
Avg humidity
Williamsport Weather January
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Temperatures trend during January in Williamsport
See the weather trend as well as the moving average line
January weather in Williamsport day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Jan. 1 |  Fog | 2° /-3° | 2.2 mm | 0 cm | |
| Jan. 2 |  Overcast | 0° /-4° | 0 mm | 0 cm | |
| Jan. 3 |  Cloudy | 0° /-4° | 0 mm | 0 cm | |
| Jan. 4 | Cloudy | -1° /-5° | 0 mm | 0 cm | |
| Jan. 5 | Overcast | -1° /-5° | 0 mm | 0 cm | |
| Jan. 6 |  Light snow | 0° /-3° | 0.2 mm | 0.1 cm | |
| Jan. 7 | Cloudy | 1° /-4° | 0 mm | 0 cm | |
| Jan. 8 | Mist | 2° /-4° | 0.1 mm | 0 cm | |
| Jan. 9 |  Heavy snow | 3° /-5° | 14.8 mm | 1.7 cm | |
| Jan. 10 |  Moderate or heavy snow showers | 5° /-3° | 8 mm | 0.2 cm | |
| Jan. 11 |  Moderate snow | 2° /-3° | 4.4 mm | 1.8 cm | |
| Jan. 12 | Mist | 2° /-3° | 3 mm | 1.3 cm | |
| Jan. 13 | Overcast | 5° /-2° | 4.7 mm | 0.1 cm | |
| Jan. 14 | Overcast | 1° /-5° | 0.1 mm | 0.1 cm | |
| Jan. 15 | Overcast | -2° /-8° | 0 mm | 0 cm | |
| Jan. 16 | Overcast | -3° /-8° | 0.9 mm | 0.7 cm | |
| Jan. 17 | Cloudy | -1° /-7° | 0 mm | 0 cm | |
| Jan. 18 | Heavy snow | -1° /-5° | 2.6 mm | 1.1 cm | |
| Jan. 19 | Moderate or heavy snow showers | 0° /-8° | 1.7 mm | 1.2 cm | |
| Jan. 20 | Overcast | -6° /-12° | 0 mm | 0 cm | |
| Jan. 21 | Overcast | -3° /-11° | 0 mm | 0 cm | |
| Jan. 22 | Mist | -2° /-10° | 0 mm | 0 cm | |
| Jan. 23 |  Light freezing rain | -1° /-8° | 1.3 mm | 0 cm | |
| Jan. 24 | Overcast | -4° /-8° | 2.8 mm | 0 cm | |
| Jan. 25 | Light freezing rain | -4° /-7° | 22.5 mm | 14.2 cm | |
| Jan. 26 | Fog | 0° /-5° | 4.8 mm | 3.1 cm | |
| Jan. 27 | Fog | 0° /-6° | 0.2 mm | 0 cm | |
| Jan. 28 | Overcast | -1° /-6° | 11.7 mm | 0.2 cm | |
| Jan. 29 |  Light snow showers | 0° /-7° | 0 mm | 0 cm | |
| Jan. 30 |  Patchy rain possible | -1° /-8° | 0 mm | 0 cm | |
| Jan. 31 |  Partly cloudy | -6° /-17° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Williamsport 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 Williamsport forecast closer to your planned date for the most up-to-date weather information.
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Williamsport in January - FAQ
What are the expected maximum and minimum temperatures in Williamsport during January?
Brace for cold days with temperatures not exceeding 0° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Williamsport during January?
Moderate rainfall is anticipated in Williamsport during January, with a total of 85.8 mm spread over approximately 4 days. Considering plans for rainy days is advisable.
Will it snow in Williamsport in January 2026?
Williamsport experiences an average snowfall of 12.455 cm during January, occurring over 11 days.
What are the typical wind conditions in Williamsport during January?
The average wind speed in Williamsport during January is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
Williamsport snow forecast January 2026
Track daily snowfall levels and discover Williamsport’s snowy potential this January ❄️
On average, Williamsport sees 11 snowy days during January, with approximately 12.5 cm of total snowfall.
January rainfall patterns in Williamsport
Explore the daily rainfall trends and prepare for Williamsports January weather 💧
Typically, Williamsport has 4 rainy days in January with a total of 85.8 mm of rainfall.
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Where is Williamsport?Get accurate weather forecasts for Williamsport, located at latitude 41.241 and longitude -77.001. Stay updated with localized weather information tailored for Williamsport.
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