TODAY MAR29
TEMPERATURE46
HUMIDITY79
PRESSURE101190
WIND COND.130 7.6
  • 5643Fri
  • 5741Sat
  • 5843Sun
  • 6146Mon
  • 6345Tue
daynightWeather update from Boeing Field - King County International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Whittier Heights for August is 67.5 degrees
  • The lowest monthly average temperature in Whittier Heights for December is 41.4 degrees
  • The most monthly precipitation in Whittier Heights occurs in November with 6.6 inches
  • The air quality index in Whittier Heights is 7% worse than the national average
  • The pollution index in Whittier Heights is 60% better than the national average

Compare Seattle, WA Weather

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      Whittier Heights 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
      January36°F49°F42°F5.1"
      February37°F52°F44°F3.8"
      March40°F55°F47°F4.9"
      April43°F61°F51°F3.1"
      May49°F68°F57°F2.2"
      June54°F72°F62°F1.5"
      July58°F79°F67°F0.4"
      August58°F79°F68°F0.6"
      September54°F73°F62°F1.6"
      October47°F62°F54°F3.9"
      November40°F53°F47°F6.6"
      December36°F48°F41°F6.1"

      Whittier Heights 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.
      IndexWhittier HeightsSeattleWashington
      Air quality index454536
      Pollution index1,081,4301,081,4304,541,850

      Whittier Heights air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality236
      Days with moderate air quality127
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Whittier Heights air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Whittier Heights temperature with heat index

      Whittier Heights monthly precipitation with daily maximum

      Whittier Heights monthly snow depth with daily maximum

      Whittier Heights monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Poulsbo, WA10,8691864.0%
      East Port Orchard, WA5,0691864.0%
      Manchester, WA6,0501864.0%
      Rocky Point, WA1,4181864.0%
      Keyport, WA3391864.0%
      Seattle, WA741,2514510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Brampton, ON735,754n/a 
      Mississauga, ON764,342n/a 
      Denver, CO715,8785816.0%
      Winnipeg, MB775,440n/a 
      Washington, DC701,974476.0%
      Seattle, WA741,2514510.0%
      Source: The Whittier Heights, Seattle, WA 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.