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Key findings

  • The highest monthly average temperature in Harrisburg for July is 68 degrees
  • The lowest monthly average temperature in Harrisburg for December is 39 degrees
  • The most monthly precipitation in Harrisburg occurs in December with 6.7 inches
  • The air quality index in Harrisburg is 24% better than the national average
  • The pollution index in Harrisburg is 37% better than the national average

Compare Harrisburg, OR Weather

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      Harrisburg 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
      January33°F49°F40°F4.9"
      February34°F53°F43°F4.3"
      March37°F58°F47°F5.0"
      April38°F63°F50°F2.6"
      May43°F70°F56°F2.2"
      June47°F76°F61°F1.2"
      July51°F86°F68°F0.4"
      August51°F87°F68°F0.3"
      September47°F80°F62°F1.2"
      October42°F66°F53°F3.6"
      November37°F55°F45°F6.0"
      December32°F48°F39°F6.7"

      Harrisburg 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.
      IndexHarrisburgOregonNational
      Air quality index383250
      Pollution index3,182,1805,374,5275,066,862

      Harrisburg air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality254
      Days with moderate air quality103
      Days w/ poor A.Q. for sensitive groups8
      Days with unhealthy air quality0

      Harrisburg air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.040%
      Carbon Tetrachloride0.030%
      Lead0.190%
      Mercury0.110%

      Average monthly Harrisburg temperature with heat index

      Harrisburg monthly precipitation with daily maximum

      Harrisburg monthly snow depth with daily maximum

      Harrisburg monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Halsey, OR9351766%
      Shedd, OR1661766%
      Alpine, OR1311766%
      Monroe, OR6531766%
      Bellfountain, OR931766%
      Harrisburg, OR3,6873824%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Rochester, IL3,6874020%
      Independence, MN3,687468%
      Village Green, NY3,6883726%
      Harrington, DE3,6884216%
      Waverly, NE3,6863138%
      Harrisburg, OR3,6873824%
      Source: The Harrisburg, OR 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.