TODAY NOV21
TEMPERATURE43
HUMIDITY74
PRESSURE
WIND COND.143 12.9
  • 5439Fri100%70%
  • 4938Sat80%80%
  • 4938Sun70%
  • 4936Mon
  • 4736Tue
daynightWeather update from EW6690 Maple Valley at
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Weather Quick Facts

  • The highest monthly average temperature in Shadow Lake for August is 67.5 degrees
  • The lowest monthly average temperature in Shadow Lake for December is 40.6 degrees
  • The most monthly precipitation in Shadow Lake occurs in November with 5.7 inches
  • The air quality index in Shadow Lake is 7% worse than the national average
  • The pollution index in Shadow Lake is 60% better than the national average

Compare Shadow Lake, WA Weather

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      Shadow Lake 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°F48°F41°F4.7"
      February37°F51°F44°F3.2"
      March40°F55°F46°F4.5"
      April43°F61°F50°F2.9"
      May48°F68°F57°F2.1"
      June53°F73°F62°F1.6"
      July58°F80°F67°F0.5"
      August58°F80°F67°F0.9"
      September53°F73°F62°F1.8"
      October47°F62°F53°F3.9"
      November40°F53°F46°F5.7"
      December36°F47°F41°F4.5"

      Shadow Lake 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.
      IndexShadow LakeWashingtonNational
      Air quality index453642
      Pollution index1,081,4304,541,8502,726,193

      Shadow Lake 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
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Shadow Lake temperature with heat index

      Shadow Lake monthly precipitation with daily maximum

      Shadow Lake monthly snow depth with daily maximum

      Shadow Lake monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Waller, WA7,6723040.0%
      Auburn, WA80,9144510.0%
      Fairwood, WA19,4004510.0%
      Black Diamond, WA4,7034510.0%
      Hobart, WA7,0314510.0%
      Shadow Lake, WA2,3854510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Kenly, NC2,3854020.0%
      Commerce, OK2,3843824.0%
      Royal City, WA2,3841864.0%
      Kelsey, MB2,384n/a 
      Sylvania, AL2,3863922.0%
      Shadow Lake, WA2,3854510.0%
      Source: The Shadow Lake, 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.