TODAY APR17
TEMPERATURE58
HUMIDITY44
PRESSURE29.79
WIND COND.250 16.6
  • 6444Sun
  • 6644Mon
  • 7050Tue
  • 6335Wed50%50%
  • 5239Thu
daynightWeather update from Harrisburg, Capital City Airport at

Key findings

  • The highest monthly average temperature in Duncannon for July is 76.6 degrees
  • The lowest monthly average temperature in Duncannon for January is 31.6 degrees
  • The most monthly precipitation in Duncannon occurs in October with 5.1 inches
  • The air quality index in Duncannon is 12% better than the national average
  • The pollution index in Duncannon is 119% worse than the national average

Compare Duncannon, PA Weather

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      Duncannon 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
      January24°F40°F32°F2.5"
      February24°F43°F33°F2.3"
      March33°F53°F42°F2.7"
      April43°F66°F54°F3.9"
      May52°F75°F63°F3.9"
      June62°F83°F73°F4.6"
      July67°F87°F77°F4.4"
      August64°F85°F74°F4.2"
      September58°F79°F68°F3.4"
      October47°F67°F56°F5.1"
      November36°F55°F45°F2.4"
      December29°F45°F36°F3.7"

      Duncannon 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.
      IndexDuncannonPennsylvaniaNational
      Air quality index444550
      Pollution index11,091,2004,327,9925,066,862

      Duncannon air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality252
      Days with moderate air quality107
      Days w/ poor A.Q. for sensitive groups5
      Days with unhealthy air quality1

      Duncannon air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.140%
      Carbon Tetrachloride0.030%
      Lead0.310%
      Mercury0.004%

      Average monthly Duncannon temperature with heat index

      Duncannon monthly precipitation with daily maximum

      Duncannon monthly snow depth with daily maximum

      Duncannon monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Thompsontown, PA8444412%
      Enhaut, PA9484412%
      Lower Allen, PA7,0544412%
      Oberlin, PA2614412%
      Schlusser, PA5,3034412%
      Duncannon, PA1,4724412%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Mariposa, CA1,472484%
      Nunda, NY1,4733726%
      Bells, TX1,473325550%
      Sugar City, ID1,4714314%
      Tubac, AZ1,4713138%
      Duncannon, PA1,4724412%
      Source: The Duncannon, 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.