TODAY OCT21
TEMPERATURE54
HUMIDITY77
PRESSURE29.64
WIND COND.190 8.1
  • 5137Sun
  • 5545Mon
  • 6343Tue
  • 5637Wed
  • 5036Thu
daynightWeather update from Philadelphia, Philadelphia International Airport at
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Philadelphia Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January26°F44°F34°F3.3"
February26°F46°F35°F2.6"
March33°F56°F44°F3.6"
April44°F68°F56°F4.0"
May54°F77°F65°F3.9"
June64°F86°F74°F4.8"
July70°F90°F79°F5.0"
August68°F87°F77°F5.8"
September61°F82°F71°F4.3"
October50°F70°F59°F4.7"
November39°F59°F48°F2.8"
December31°F49°F40°F4.7"

Did you know?

  • The highest monthly average temperature in Philadelphia for July is 79 degrees.
  • The lowest monthly average temperature in Philadelphia for January is 34 degrees.
  • The most monthly precipitation in Philadelphia occurs in August with 5.8 inches.
  • The air quality index in Philadelphia is 14% worse than the national average.
  • The pollution index in Philadelphia is 146% worse than the national average.

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Philadelphia air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexPhiladelphiaPennsylvaniaNational
Air quality index574550
Pollution index12,485,1004,327,9925,066,862

Philadelphia air quality information

MeasurementTotal
Days measured365
Days with good air quality110
Days with moderate air quality244
Days w/ poor A.Q. for sensitive groups11
Days with unhealthy air quality

Philadelphia air quality information

PollutantTotal
Arsenic0.020%
Benzene0.100%
Carbon Tetrachloride0.100%
Lead0.120%
Mercury0.010%

Average monthly Philadelphia temperature with heat index

Philadelphia monthly precipitation with daily maximum

Philadelphia monthly snow depth with daily maximum

Philadelphia monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Croydon, PA9,8074020%
Langhorne Manor, PA1,4304020%
Hulmeville, PA9654020%
Penndel, PA2,8234020%
Trevose, PA3,4384020%
Philadelphia, PA1,559,9385714%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Phoenix, AZ1,555,3247448%
San Antonio, TX1,439,3584510%
San Diego, CA1,374,8126122%
Dallas, TX1,278,433548%
San Jose, CA1,009,363484%
Philadelphia, PA1,559,9385714%
Source: The Philadelphia, PA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.