Pennsylvania weather averages

Usually in September
- 25
- 14
- 7
Weather by month
Now Today
- 25
- 4
5-day forecast

Going to Pennsylvania? Find the best month to visit Pennsylvania based on the weather.

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Check Pennsylvania weather averages before you book your next holiday in 2018/2019. Today's maximum temperature in Pennsylvania is expected to be 25°C, while the average maximum temperature in September is 25°C. The holiday weather guide shown above is for Philadelphia.

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More about Pennsylvania

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Metric (°C / mm) | Imperial (°F / inches)

Pennsylvania weather averages: best month

Pennsylvania	Best month	Averages
Warmest	July	30°C
Sunniest	June & July	9 hours per day
Least rain	September & October	8 days

Pennsylvania climate guide

Tropical storm risk: Pennsylvania hurricane season

% of month affected by tropical storms

<1%

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The Pennsylvania tropical storm risk chart above shows the hurricane season for Philadelphia, Pennsylvania.

More about tropical storms

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Pennsylvania weather averages by month

Check Pennsylvania holiday weather averages for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

Compare Pennsylvania weather with the USA

Below the Pennsylvania weather chart shows maximum daytime temperature for Pennsylvania, USA (Philadelphia) and the USA (Washington). For more weather parameters or to change the destinations shown visit the comparison weather tool.