TODAY MAR02
TEMPERATURE42
HUMIDITY42
PRESSURE103420
WIND COND.180 11.2
  • 5144Sat100%40%
  • 6147Sun
  • 6145Mon
  • 6046Tue
  • 5745Wed50%60%
daynightWeather update from Philadelphia - Wings Field Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Devon for July is 75.8 degrees
  • The lowest monthly average temperature in Devon for January is 32.9 degrees
  • The most monthly precipitation in Devon occurs in August with 11 inches
  • The air quality index in Devon is 21% worse than the national average
  • The pollution index in Devon is 20% better than the national average

Compare Devon, PA Weather

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      Devon 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°F41°F33°F3.2"
      February26°F42°F33°F2.5"
      March34°F53°F42°F6.9"
      April43°F65°F53°F3.6"
      May52°F74°F63°F6.0"
      June61°F81°F71°F6.5"
      July66°F86°F76°F7.9"
      August63°F83°F73°F11.0"
      September56°F77°F66°F6.8"
      October46°F66°F55°F9.4"
      November37°F55°F45°F2.9"
      December31°F46°F38°F7.7"

      Devon 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.
      IndexDevonPennsylvaniaNational
      Air quality index514542
      Pollution index2,169,6004,584,8052,726,193

      Devon air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality180
      Days with moderate air quality169
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality0

      Devon air quality information

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

      Average monthly Devon temperature with heat index

      Devon monthly precipitation with daily maximum

      Devon monthly snow depth with daily maximum

      Devon monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Downingtown, PA8,0124216.0%
      Sanatoga, PA8,7104216.0%
      Stowe, PA3,6974216.0%
      Exton, PA6,0794216.0%
      Greenfields, PA1,1304216.0%
      Devon, PA1,830512.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Mathews, LA1,8304118.0%
      Lynnwood-Pricedale, PA1,8305612.0%
      Campbellsport, WI1,8303628.0%
      McCrory, AR1,8314510.0%
      Horton, KS1,8294314.0%
      Devon, PA1,830512.0%
      Source: The Devon, 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.