TODAY NOV02
TEMPERATURE46
HUMIDITY2
PRESSURE100450
WIND COND.150 1.6
  • 5243Sat40%90%
  • 5243Sun50%60%
  • 5240Mon100%80%
  • 5135Tue
  • 5237Wed
daynightWeather update from EW6690 Maple Valley at
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Weather Quick Facts

  • The highest monthly average temperature in Lake Morton-Berrydale for August is 67.5 degrees
  • The lowest monthly average temperature in Lake Morton-Berrydale for December is 40.6 degrees
  • The most monthly precipitation in Lake Morton-Berrydale occurs in November with 5.7 inches
  • The air quality index in Lake Morton-Berrydale is 7% worse than the national average
  • The pollution index in Lake Morton-Berrydale is 549% worse than the national average

Compare Lake Morton-Berrydale, WA Weather

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      Lake Morton-Berrydale 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"

      Lake Morton-Berrydale 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.
      IndexLake Morton-BerrydaleWashingtonNational
      Air quality index453642
      Pollution index17,693,8004,541,8502,726,193

      Lake Morton-Berrydale 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 Lake Morton-Berrydale temperature with heat index

      Lake Morton-Berrydale monthly precipitation with daily maximum

      Lake Morton-Berrydale monthly snow depth with daily maximum

      Lake Morton-Berrydale monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Dash Point, WA1,0081864.0%
      Clover Creek, WA6,8933040.0%
      South Hill, WA64,1043040.0%
      Summit View, WA9,0783040.0%
      Waller, WA7,6723040.0%
      Lake Morton-Berrydale, WA11,1184510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Sechelt, BC11,114n/a 
      Carignan, QC11,123n/a 
      Yellowhead County, AB11,111n/a 
      Town and Country, MO11,109548.0%
      Grosse Pointe Park, MI11,1085612.0%
      Lake Morton-Berrydale, WA11,1184510.0%
      Source: The Lake Morton-Berrydale, 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.