TODAY NOV21
TEMPERATURE46
HUMIDITY79
PRESSURE101220
WIND COND.120 5.4
  • 524670%90%
  • 5543Fri100%80%
  • 5042Sat90%80%
  • 5142Sun70%
  • 4841Mon
daynightWeather update from Portland, Portland International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in King for August is 69.5 degrees
  • The lowest monthly average temperature in King for December is 39.9 degrees
  • The most monthly precipitation in King occurs in November with 6.2 inches
  • The air quality index in King is 10% better than the national average
  • The pollution index in King is 30% better than the national average

Compare Portland, OR Weather

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      King 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"

      King 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.
      IndexKingPortlandOregon
      Air quality index383832
      Pollution index1,899,4101,899,4107,156,356

      King 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 King temperature with heat index

      King monthly precipitation with daily maximum

      King monthly snow depth with daily maximum

      King monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Fairview, OR9,3823824.0%
      Wood Village, OR4,0693824.0%
      Hockinson, WA6,1593824.0%
      Bull Mountain, OR9,7323824.0%
      Jennings Lodge, OR8,5003824.0%
      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 King, 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.