TODAY NOV21
TEMPERATURE43
HUMIDITY82
PRESSURE101560
WIND COND.360 7.6
  • 4636Fri100%40%
  • 4431Sat30%
  • 4231Sun20%
  • 4230Mon20%
  • 3929Tue
daynightWeather update from Ephrata, Ephrata Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Banks Lake South for July is 77.6 degrees
  • The lowest monthly average temperature in Banks Lake South for December is 26.4 degrees
  • The most monthly precipitation in Banks Lake South occurs in December with 1.2 inches
  • The air quality index in Banks Lake South is 57% better than the national average
  • The pollution index in Banks Lake South is 2% better than the national average

Compare Banks Lake South, WA Weather

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      Banks Lake South 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
      January22°F36°F28°F0.8"
      February27°F45°F35°F0.5"
      March32°F55°F43°F0.6"
      April38°F64°F50°F0.5"
      May47°F75°F61°F0.8"
      June54°F81°F67°F0.9"
      July62°F92°F78°F0.1"
      August59°F89°F74°F0.1"
      September50°F80°F65°F0.2"
      October39°F63°F50°F0.6"
      November30°F46°F38°F1.0"
      December19°F34°F26°F1.2"

      Banks Lake South 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.
      IndexBanks Lake SouthWashingtonNational
      Air quality index183642
      Pollution index2,683,4104,541,8502,726,193

      Banks Lake South air quality

      MeasurementTotal
      Days measured365
      Days with good air quality339
      Days with moderate air quality26
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.040%
      Carbon Tetrachloride0.004%
      Lead0.030%
      Mercury0.000%

      Average monthly Banks Lake South temperature with heat index

      Banks Lake South monthly precipitation with daily maximum

      Banks Lake South monthly snow depth with daily maximum

      Banks Lake South monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Hartline, WA1821864.0%
      Wilson Creek, WA1931864.0%
      Coulee City, WA5791864.0%
      Banks Lake South, WA1131864.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Peterman, AL1133726.0%
      McNab, AR1133922.0%
      Sehili, AZ1131766.0%
      Guinda, CA1133138.0%
      Martell, CA1133922.0%
      Banks Lake South, WA1131864.0%
      Source: The Banks Lake South, 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.