Allentown weather in January 2025

Expect 36°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Allentown in January. Check more long-term weather averages for Allentown in January before you book your next holiday to Pennsylvania in 2025/2026.

  • 36°F maximum daytime temperature in January in Allentown36
    36°F max day temperature
  • 5 hours of sunshine per day
  • 11 days with some rainfall in January in Allentown11
    11 days with some rainfall
  • 19°F minimum night-time temperature in January in Allentown19
    19°F min night temperature
  • 10 hours of daylight per day in January in Allentown10
    10 hours of daylight per day
  • No heat & humidity in January in Allentown0
    No heat & humidity
  • 3.3 inches monthly rainfall in January in Allentown3.3
    3.3 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Allentown2
    2 (Low) UV index

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The January weather guide for Pennsylvania (Allentown) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about the USA

How cold is it in Allentown in January?

Daytime temperatures usually reach 36°F in Allentown in January, falling to 19°F at night.

How sunny is it in Allentown in January?

There are normally 5 hours of bright sunshine each day in Allentown in January - that's 50% of daylight hours.

Does it rain in Allentown in January?

There are usually 11 days with some rain in Allentown in January and the average monthly rainfall is 3.3 inches. Rain may fall as snow in this month.

Allentown January sunrise & sunset times

Browse the sunrise and sunset times for Allentown in January 2025. Select a month to view Allentown sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 07:26 16:46
Thursday, 16th January 2025 07:23 17:01
Friday, 31st January 2025 07:12 17:19

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