TODAY MAY30
TEMPERATURE55
HUMIDITY62
PRESSURE102910
WIND COND.340 5.4
  • 7246Thu
  • 7852Fri
  • 7252Sat20%
  • 6356Sun
  • 6549Mon
daynightWeather update from Aurora State Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Tualatin for July is 69 degrees
  • The lowest monthly average temperature in Tualatin for January is 39.8 degrees
  • The most monthly precipitation in Tualatin occurs in December with 10.1 inches
  • The air quality index in Tualatin is 10% better than the national average
  • The pollution index in Tualatin is 323% worse than the national average

Compare Tualatin, OR Weather

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      Tualatin 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°F48°F40°F4.1"
      February35°F53°F43°F3.9"
      March40°F61°F49°F4.7"
      April42°F62°F51°F3.1"
      May48°F70°F58°F4.2"
      June51°F73°F60°F2.3"
      July56°F84°F69°F2.0"
      August55°F85°F68°F4.3"
      September49°F76°F61°F4.5"
      October46°F62°F53°F5.6"
      November36°F53°F43°F5.8"
      December35°F47°F40°F10.1"

      Tualatin 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.
      IndexTualatinOregonNational
      Air quality index383242
      Pollution index11,541,1007,156,3562,726,193

      Tualatin air quality information

      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

      Tualatin air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.140%
      Carbon Tetrachloride0.020%
      Lead0.020%
      Mercury0.010%

      Average monthly Tualatin temperature with heat index

      Tualatin monthly precipitation with daily maximum

      Tualatin monthly snow depth with daily maximum

      Tualatin monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      St. Paul, OR3963236.0%
      Dayton, OR2,7263236.0%
      Donald, OR1,4653236.0%
      Hubbard, OR3,5273236.0%
      Dundee, OR3,2963236.0%
      Tualatin, OR27,6013824.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      South Laurel, MD27,593476.0%
      Milton, MA27,5904314.0%
      Lansing, IL27,6145510.0%
      Morrisville, NC27,5824412.0%
      Converse, TX27,582492.0%
      Tualatin, OR27,6013824.0%
      Source: The Tualatin, 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.