TODAY NOV02
TEMPERATURE53
HUMIDITY77
PRESSURE101290
WIND COND.210 14.8
  • 5744Sun40%20%
  • 5543Mon100%70%
  • 5537Tue60%
  • 5536Wed
  • 5737Thu
daynightWeather update from Salem - McNary Field at
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Weather Quick Facts

  • The highest monthly average temperature in Keizer for August is 68.9 degrees
  • The lowest monthly average temperature in Keizer for December is 40 degrees
  • The most monthly precipitation in Keizer occurs in December with 7.4 inches
  • The air quality index in Keizer is 24% better than the national average
  • The pollution index in Keizer is 17% worse than the national average

Compare Keizer, OR Weather

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      Keizer 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
      January34°F49°F41°F5.6"
      February35°F53°F43°F4.1"
      March37°F58°F47°F5.4"
      April39°F63°F50°F2.9"
      May45°F71°F57°F2.3"
      June50°F76°F62°F1.3"
      July54°F86°F69°F0.3"
      August54°F86°F69°F0.4"
      September50°F80°F63°F1.8"
      October43°F66°F54°F4.1"
      November38°F55°F46°F6.7"
      December33°F48°F40°F7.4"

      Keizer 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.
      IndexKeizerOregonNational
      Air quality index323242
      Pollution index3,182,1807,156,3562,726,193

      Keizer air quality

      MeasurementTotal
      Days measured356
      Days with good air quality302
      Days with moderate air quality54
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Keizer temperature with heat index

      Keizer monthly precipitation with daily maximum

      Keizer monthly snow depth with daily maximum

      Keizer monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Salem, OR171,8063236.0%
      McMinnville, OR34,4663236.0%
      Brooks, OR6213236.0%
      Labish Village, OR4913236.0%
      Woodburn, OR26,0083236.0%
      Keizer, OR39,4083236.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Meadow Woods, FL39,4243922.0%
      Plant City, FL39,4373628.0%
      Los Banos, CA39,443484.0%
      Carol Stream, IL39,4475510.0%
      Lake Oswego, OR39,4763824.0%
      Keizer, OR39,4083236.0%
      Source: The Keizer, 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.