TODAY JUN20
TEMPERATURE74
HUMIDITY57
PRESSURE29.91
WIND COND.40 4.7
  • 8364Thu50%
  • 7763Fri50%
  • 8568Sat70%60%
  • 8565Sun30%
  • 8061Mon
daynightWeather update from Pottstown, Pottstown Limerick Airport at

West Chester Average Weather

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
January8°F48°F29°Fn/a
February15°F69°F37°Fn/a
March14°F77°F42°Fn/a
April37°F93°F55°Fn/a
May44°F90°F64°Fn/a
June57°F90°F71°Fn/a
July60°F93°F75°Fn/a
August64°F93°F77°Fn/a
September50°F90°F68°Fn/a
October39°F81°F58°Fn/a
November26°F72°F47°Fn/a
December17°F67°F38°Fn/a

Did you know?

  • The highest monthly average temperature in West Chester for August is 77 degrees.
  • The lowest monthly average temperature in West Chester for January is 29 degrees.
  • The most monthly precipitation in West Chester occurs in January with 0 inches.
  • The air quality index in West Chester is 14% worse than the national average.
  • The pollution index in West Chester is 57% better than the national average.

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Compare West Chester, PA Weather To Other Cities

West Chester 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.
IndexWest ChesterPennsylvaniaNational
Air quality index574550
Pollution index2,169,6004,327,9925,066,862

West Chester 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

West Chester air quality information

PollutantTotal
Arsenic0.010%
Benzene0.030%
Carbon Tetrachloride0.002%
Lead0.010%
Mercury0.004%

Average monthly West Chester temperature with heat index

West Chester monthly precipitation with daily maximum

West Chester monthly snow depth with daily maximum

West Chester monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Avondale, PA1,4304510%
Spring City, PA3,3194510%
West Grove, PA2,8504510%
Downingtown, PA7,9404510%
Lionville, PA6,5574510%
West Chester, PA19,4345714%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Alice, TX19,4393138%
Altus, OK19,4224216%
Port Angeles, WA19,4203334%
Albany, CA19,4204314%
Iselin, NJ19,411536%
West Chester, PA19,4345714%
Source: The West Chester, 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.