TODAY NOV21
TEMPERATURE46
HUMIDITY79
PRESSURE101250
WIND COND.100 25.9
  • 5643Fri100%80%
  • 5041Sat90%80%
  • 5142Sun70%
  • 4941Mon
  • 4940Tue
daynightWeather update from Portland, Portland-Troutdale Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Mill Park for August is 69.5 degrees
  • The lowest monthly average temperature in Mill Park for December is 39.9 degrees
  • The most monthly precipitation in Mill Park occurs in November with 6.2 inches
  • The air quality index in Mill Park is 10% better than the national average
  • The pollution index in Mill Park is 789% worse than the national average

Compare Portland, OR Weather

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      Mill Park 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°F4.9"
      February36°F53°F43°F3.4"
      March39°F58°F48°F4.8"
      April42°F63°F52°F3.0"
      May48°F71°F58°F2.8"
      June53°F76°F63°F1.7"
      July57°F84°F69°F0.5"
      August58°F85°F70°F0.5"
      September53°F78°F64°F1.8"
      October47°F66°F55°F3.7"
      November40°F55°F47°F6.2"
      December34°F47°F40°F6.2"

      Mill Park 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.
      IndexMill ParkPortlandOregon
      Air quality index383832
      Pollution index24,235,4001,899,4107,156,356

      Mill Park 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
      Arsenic0.003%
      Benzene0.020%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.002%

      Average monthly Mill Park temperature with heat index

      Mill Park monthly precipitation with daily maximum

      Mill Park monthly snow depth with daily maximum

      Mill Park monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Maywood Park, OR1,2243824.0%
      Camas, WA24,0433824.0%
      Beaverton, OR98,5673824.0%
      Gladstone, OR12,3163824.0%
      Metzger, OR4,4023824.0%
      Portland, OR650,3803824.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Memphis, TN650,9104510.0%
      Oklahoma City, OK649,821484.0%
      Las Vegas, NV644,594548.0%
      Nashville, TN667,0704510.0%
      Detroit, MI672,3515612.0%
      Portland, OR650,3803824.0%
      Source: The Mill Park, Portland, 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.