Pennsylvania weather in May 2025

Expect daytime maximum temperatures of 73°F in Pennsylvania, USA in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 3.9 inches of rainfall in the month.

  • 73°F maximum daytime temperature in May in Pennsylvania (Philadelphia)73
    73°F max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in May in Pennsylvania (Philadelphia)11
    11 days with some rainfall
  • 52°F minimum night-time temperature in May in Pennsylvania (Philadelphia)52
    52°F min night temperature
  • 14 hours of daylight per day in May in Pennsylvania (Philadelphia)14
    14 hours of daylight per day
  • No heat & humidity in May in Pennsylvania (Philadelphia)0
    No heat & humidity
  • 3.9 inches monthly rainfall in May in Pennsylvania (Philadelphia)3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Pennsylvania (Philadelphia)8
    8 (Very High) UV index

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The May 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 May. 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 hot is it in Pennsylvania in May?

Daytime temperatures usually reach 73°F in Philadelphia, Pennsylvania in May, falling to 52°F at night.

How sunny is it in Pennsylvania in May?

There are normally 8 hours of bright sunshine each day in Philadelphia, Pennsylvania in May - that's 55% of daylight hours.

Does it rain in Pennsylvania in May?

There are usually 11 days with some rain in Philadelphia, Pennsylvania in May and the average monthly rainfall is 3.9 inches.

Pennsylvania May sunrise & sunset times

Browse the sunrise and sunset times for Pennsylvania in May 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
Thursday, 1st May 2025 05:00 18:56
Friday, 16th May 2025 04:44 19:10
Saturday, 31st May 2025 04:34 19:23

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