TODAY DEC22
TEMPERATURE51
HUMIDITY93
PRESSURE
WIND COND.316 1.6
  • 6154Sun80%30%
  • 6453Mon20%60%
  • 5841Tue100%20%
  • 5444
  • 5448Thu
daynightWeather update from PILOT HILL at
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Weather Quick Facts

  • The highest monthly average temperature in Granite Bay for July is 75.7 degrees
  • The lowest monthly average temperature in Granite Bay for January is 46 degrees
  • The most monthly precipitation in Granite Bay occurs in December with 3.4 inches
  • The air quality index in Granite Bay is 24% worse than the national average
  • The pollution index in Granite Bay is 57% worse than the national average

Compare Granite Bay, CA Weather

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      Granite Bay 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
      January37°F57°F46°F3.3"
      February40°F63°F51°F2.9"
      March43°F68°F55°F2.6"
      April46°F74°F59°F1.6"
      May51°F83°F66°F0.5"
      June57°F91°F72°F0.3"
      July59°F96°F76°F0.0"
      August58°F94°F74°F0.0"
      September55°F91°F71°F0.1"
      October49°F80°F63°F0.9"
      November42°F66°F53°F1.8"
      December37°F57°F46°F3.4"

      Granite Bay 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 BayCaliforniaNational
      Air quality index525542
      Pollution index4,289,31010,473,1902,726,193

      Granite Bay air quality

      MeasurementTotal
      Days measured365
      Days with good air quality171
      Days with moderate air quality173
      Days w/ poor A.Q. for sensitive groups21
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.050%
      Benzene0.070%
      Carbon Tetrachloride0.001%
      Lead0.060%
      Mercury0.010%

      Average monthly Granite Bay temperature with heat index

      Granite Bay monthly precipitation with daily maximum

      Granite Bay monthly snow depth with daily maximum

      Granite Bay monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Sheridan, CA1,1204412.0%
      Carmichael, CA75,642524.0%
      Folsom, CA79,584524.0%
      McClellan Park, CA843524.0%
      Rio Linda, CA16,115524.0%
      Granite Bay, CA22,818524.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Keene, NH22,8233432.0%
      Wilmot, ON22,827n/a 
      Eastmont, WA22,8294510.0%
      Radcliff, KY22,7963922.0%
      Hastings, MN22,7963726.0%
      Granite Bay, CA22,818524.0%
      Source: The Granite Bay, CA 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.