Pennsylvania weather in January 2025

Expect 37°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Pennsylvania in January. Check more long-term weather averages for Pennsylvania in January before you book your next holiday to Pennsylvania in 2025/2026.

  • 37°F maximum daytime temperature in January in Pennsylvania (Philadelphia)37
    37°F max day temperature
  • 5 hours of sunshine per day
  • 11 days with some rainfall in January in Pennsylvania (Philadelphia)11
    11 days with some rainfall
  • 23°F minimum night-time temperature in January in Pennsylvania (Philadelphia)23
    23°F min night temperature
  • 10 hours of daylight per day in January in Pennsylvania (Philadelphia)10
    10 hours of daylight per day
  • No heat & humidity in January in Pennsylvania (Philadelphia)0
    No heat & humidity
  • 3.3 inches monthly rainfall in January in Pennsylvania (Philadelphia)3.3
    3.3 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Pennsylvania (Philadelphia)2
    2 (Low) UV index

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The January weather guide for Pennsylvania (Philadelphia) 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.

Top Pennsylvania destinations

Below are average maximum temperatures at popular countries, regions and places in Pennsylvania in January. Select a holiday destination to see more weather parameters.

All Pennsylvania destinations

Metric (°C)  |  Imperial (°F)

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More about the USA

How cold is it in Pennsylvania in January?

Daytime temperatures usually reach 37°F in Philadelphia, Pennsylvania in January, falling to 23°F at night.

How sunny is it in Pennsylvania in January?

There are normally 5 hours of bright sunshine each day in Philadelphia, Pennsylvania in January - that's 52% of daylight hours.

Does it rain in Pennsylvania in January?

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

Pennsylvania January sunrise & sunset times

Browse the sunrise and sunset times for Pennsylvania in January 2025. Select a month to view Pennsylvania sunrise and sunset times for the next 12 months. The Pennsylvania sunrise and sunset times shown below are for Philadelphia.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 07:22 16:47
Thursday, 16th January 2025 07:20 17:02
Friday, 31st January 2025 07:10 17:19

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