Climate in Philadelphia (Pennsylvania), United States of America

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Philadelphia, the United States of America

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in Philadelphia, the United States of America

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Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year

Average monthly percentage of sunshine in Philadelphia, the United States of America

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Average water temperature

The mean water temperature over the year.

Average monthly water temperature in Philadelphia, the United States of America

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Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Average monthly rainfall, snow, precipitation in Philadelphia, the United States of America

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average monthly rainy days in Philadelphia, the United States of America

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in Philadelphia, the United States of America

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Weather Forecasts for Philadelphia (PA)

Thu   Mar 28
12°C | 6°C
N 18 km/h
9.1 mm
overcast and heavy rain

overcast and heavy rain

Fri   Mar 29
14°C | 3°C
NW 32 km/h
almost clear and no rain

almost clear and no rain

Sat   Mar 30
14°C | 3°C
SW 18 km/h
1.8 mm
broken clouds and  chance of slight rain

broken clouds and chance of slight rain

The best time of year to visit Philadelphia in the United States of America

Other facts from our historical weather data:

  • When is summer in Philadelphia?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Philadelphia?
    July has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Philadelphia?
    The coldest month is January with an average maximum temperature of 5°C.
  • Which is the wettest month in Philadelphia?
    August tops the wettest month list with 132 mm of rainfall.
  • Which is the driest month in Philadelphia?
    November is the driest month with 78 mm of precipitation.
  • Which is the sunniest month in Philadelphia?
    July is the sunniest month with an average of 275 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.