TODAY NOV09
TEMPERATURE52
HUMIDITY69
PRESSURE101630
WIND COND.160 13
  • 5547Sat40%90%
  • 5647Sun80%100%
  • 5345100%100%
  • 5246Tue
  • 5446Wed
daynightWeather update from Seattle, Seattle-Tacoma International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Federal Way for August is 66.5 degrees
  • The lowest monthly average temperature in Federal Way for December is 40.6 degrees
  • The most monthly precipitation in Federal Way occurs in November with 7.1 inches
  • The air quality index in Federal Way is 7% worse than the national average
  • The pollution index in Federal Way is 549% worse than the national average

Compare Federal Way, WA Weather

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      Federal Way 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
      January35°F48°F42°F5.6"
      February37°F51°F43°F3.7"
      March39°F55°F46°F5.1"
      April42°F60°F50°F3.2"
      May47°F68°F56°F2.2"
      June52°F72°F61°F1.5"
      July56°F80°F66°F0.6"
      August56°F80°F66°F1.1"
      September53°F73°F61°F1.9"
      October46°F62°F53°F4.5"
      November40°F53°F46°F7.1"
      December35°F47°F41°F6.1"

      Federal Way 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.
      IndexFederal WayWashingtonNational
      Air quality index453642
      Pollution index17,693,8004,541,8502,726,193

      Federal Way air quality

      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

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.300%
      Carbon Tetrachloride0.050%
      Lead0.110%
      Mercury0.020%

      Average monthly Federal Way temperature with heat index

      Federal Way monthly precipitation with daily maximum

      Federal Way monthly snow depth with daily maximum

      Federal Way monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Gig Harbor, WA10,2801864.0%
      Southworth, WA2,3001864.0%
      Bethel, WA4,1821864.0%
      Tacoma, WA215,7661864.0%
      Dash Point, WA1,0081864.0%
      Federal Way, WA96,8124510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Nampa, ID96,8253628.0%
      Albany, NY96,8603726.0%
      Erie, PA96,6163628.0%
      Bend, OR97,0322060.0%
      Lawrence, KS97,3484118.0%
      Federal Way, WA96,8124510.0%
      Source: The Federal Way, 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.