TODAY NOV02
TEMPERATURE47
HUMIDITY98
PRESSURE
WIND COND.208 4.8
  • 5142Sun70%80%
  • 5139Mon100%80%
  • 4834Tue60%
  • 5237Wed
  • 5641Thu
daynightWeather update from JIM CREEK at
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Weather Quick Facts

  • The highest monthly average temperature in Granite Falls for August is 63.3 degrees
  • The lowest monthly average temperature in Granite Falls for December is 37.6 degrees
  • The most monthly precipitation in Granite Falls occurs in November with 4 inches
  • The air quality index in Granite Falls is 43% better than the national average
  • The pollution index in Granite Falls is 479% worse than the national average

Compare Granite Falls, WA Weather

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      Granite Falls 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
      January33°F46°F39°F3.0"
      February34°F50°F41°F1.7"
      March37°F54°F45°F3.4"
      April40°F59°F48°F2.0"
      May45°F65°F54°F2.4"
      June49°F70°F59°F1.9"
      July52°F77°F63°F1.3"
      August52°F78°F63°F1.4"
      September49°F71°F58°F2.4"
      October43°F60°F50°F3.4"
      November37°F52°F44°F4.0"
      December32°F44°F38°F3.1"

      Granite Falls 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.
      IndexGranite FallsWashingtonNational
      Air quality index243642
      Pollution index15,778,9004,541,8502,726,193

      Granite Falls air quality

      MeasurementTotal
      Days measured365
      Days with good air quality361
      Days with moderate air quality4
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.270%
      Carbon Tetrachloride0.040%
      Lead0.160%
      Mercury0.003%

      Average monthly Granite Falls temperature with heat index

      Granite Falls monthly precipitation with daily maximum

      Granite Falls monthly snow depth with daily maximum

      Granite Falls monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Canyon Creek, WA3,2182452.0%
      Arlington, WA19,9472452.0%
      Lake Goodwin, WA4,6132452.0%
      Marysville, WA69,6292452.0%
      Sunday Lake, WA9472452.0%
      Granite Falls, WA3,9612452.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Hephzibah, GA3,961476.0%
      Medford Lakes, NJ3,961512.0%
      Oaklyn, NJ3,961512.0%
      White City, SK3,960n/a 
      Metter, GA3,9623922.0%
      Granite Falls, WA3,9612452.0%
      Source: The Granite Falls, 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.