Allentown (PA)
January
Weather in Allentown, Pennsylvania for January 2026
Your guide to Allentown weather in January - trends and predictions
With an average of 3 snowy days, Allentown usually enjoys a light touch of snow in January.
In general, the average temperature in Allentown at the beginning of January is 0.9 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 1.9 °F by the end of January.
With an average of 4 rainy days, Allentown experiences minimal rainfall in January.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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24
Dry days
4
Rainy days
3
Snow days
0°/-6°
Temperatures
21 km/h
Avg max wind
71 %
Avg humidity
Allentown Weather January
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Temperatures trend during January in Allentown
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January weather in Allentown day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Jan. 1 |  Overcast | 5° /2° | 5.2 mm | 0 cm | |
| Jan. 2 |  Sunny | 4° /-1° | 0 mm | 0 cm | |
| Jan. 3 | Overcast | 1° /-3° | 0 mm | 0 cm | |
| Jan. 4 |  Partly cloudy | 0° /-4° | 0 mm | 0 cm | |
| Jan. 5 | Sunny | 0° /-5° | 0 mm | 0 cm | |
| Jan. 6 |  Moderate snow | -2° /-5° | 4.3 mm | 2 cm | |
| Jan. 7 |  Cloudy | -2° /-6° | 0 mm | 0 cm | |
| Jan. 8 | Overcast | -2° /-6° | 0 mm | 0 cm | |
| Jan. 9 | Sunny | 0° /-8° | 0 mm | 0 cm | |
| Jan. 10 | Partly cloudy | 0° /-7° | 0 mm | 0 cm | |
| Jan. 11 |  Light freezing rain | 0° /-3° | 2.2 mm | 0.7 cm | |
| Jan. 12 | Sunny | 4° /-4° | 0 mm | 0 cm | |
| Jan. 13 | Overcast | 3° /-2° | 0 mm | 0 cm | |
| Jan. 14 | Overcast | -2° /-6° | 0 mm | 0 cm | |
| Jan. 15 | Overcast | 0° /-7° | 0 mm | 0 cm | |
| Jan. 16 | Light freezing rain | -3° /-8° | 0.9 mm | 0 cm | |
| Jan. 17 | Overcast | 3° /-5° | 0 mm | 0 cm | |
| Jan. 18 |  Patchy rain possible | 2° /-2° | 0.4 mm | 0 cm | |
| Jan. 19 |  Moderate or heavy snow showers | 1° /-5° | 7.7 mm | 4.4 cm | |
| Jan. 20 | Cloudy | -4° /-11° | 0 mm | 0 cm | |
| Jan. 21 | Overcast | -8° /-15° | 0 mm | 0 cm | |
| Jan. 22 | Sunny | -7° /-17° | 0 mm | 0 cm | |
| Jan. 23 | Overcast | -4° /-12° | 0 mm | 0 cm | |
| Jan. 24 | Sunny | -1° /-10° | 0 mm | 0 cm | |
| Jan. 25 | Overcast | -2° /-11° | 0 mm | 0 cm | |
| Jan. 26 | Overcast | 3° /-5° | 0 mm | 0 cm | |
| Jan. 27 | Partly cloudy | 2° /-8° | 0 mm | 0 cm | |
| Jan. 28 | Cloudy | 0° /-3° | 0 mm | 0 cm | |
| Jan. 29 | Cloudy | 6° /-2° | 0 mm | 0 cm | |
| Jan. 30 | Partly cloudy | 2° /-6° | 0 mm | 0 cm | |
| Jan. 31 |  Moderate rain | 2° /-1° | 12.1 mm | 0 cm | |
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Important Notice
Our weather forecast for Allentown 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 Allentown forecast closer to your planned date for the most up-to-date weather information.
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Allentown in January - FAQ
What are the expected maximum and minimum temperatures in Allentown 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 Allentown during January?
In January, Allentown can expect light to moderate rainfall, totaling 32.8 mm across approximately 4 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Allentown in January 2026?
Allentown experiences an average snowfall of 7.1 cm during January, occurring over 3 days.
What are the typical wind conditions in Allentown during January?
The average wind speed in Allentown during January is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
Allentown snow forecast January 2026
Track daily snowfall levels and discover Allentown’s snowy potential this January ❄️
January rainfall patterns in Allentown
Explore the daily rainfall trends and prepare for Allentowns January weather 💧
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