TODAY NOV21
TEMPERATURE42
HUMIDITY96
PRESSURE101250
WIND COND.280 5.4
  • 5539Fri100%80%
  • 4938Sat90%80%
  • 5038Sun70%
  • 4837Mon
  • 4936Tue
daynightWeather update from Portland-Hillsboro Airport at
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Weather Quick Facts

  • The highest monthly average temperature in North Plains for August is 67.5 degrees
  • The lowest monthly average temperature in North Plains for December is 38.2 degrees
  • The most monthly precipitation in North Plains occurs in December with 6 inches
  • The air quality index in North Plains is 10% better than the national average
  • The pollution index in North Plains is 456% worse than the national average

Compare North Plains, OR Weather

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      North Plains 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°F47°F39°F4.8"
      February34°F52°F42°F3.8"
      March37°F56°F46°F4.5"
      April39°F62°F50°F2.5"
      May44°F70°F56°F2.1"
      June49°F75°F61°F1.3"
      July52°F84°F67°F0.3"
      August52°F85°F68°F0.4"
      September48°F78°F62°F1.4"
      October42°F65°F52°F3.6"
      November37°F53°F45°F5.8"
      December32°F45°F38°F6.0"

      North Plains 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.
      IndexNorth PlainsOregonNational
      Air quality index383242
      Pollution index15,149,9007,156,3562,726,193

      North Plains air quality

      MeasurementTotal
      Days measured365
      Days with good air quality285
      Days with moderate air quality77
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.160%
      Carbon Tetrachloride0.030%
      Lead0.080%
      Mercury0.010%

      Average monthly North Plains temperature with heat index

      North Plains monthly precipitation with daily maximum

      North Plains monthly snow depth with daily maximum

      North Plains monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Beaverton, OR98,5673824.0%
      Garden Home-Whitford, OR7,2953824.0%
      Metzger, OR4,4023824.0%
      West Slope, OR6,7993824.0%
      Bethany, OR28,0473824.0%
      North Plains, OR2,7063824.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Van, TX2,7063628.0%
      Harlem, FL2,7053628.0%
      Ford Heights, IL2,7055510.0%
      Belmont, PA2,7053922.0%
      Underwood-Petersville, AL2,7073726.0%
      North Plains, OR2,7063824.0%
      Source: The North Plains, 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.