TODAY MAR02
TEMPERATURE66
HUMIDITY27
PRESSURE
WIND COND.49 3.2
  • 7743Tue
  • 6545Wed70%60%
  • 6643Thu
  • 7445Fri
  • 6744Sat
daynightWeather update from EW4858 El Cajon at

Key findings

  • The highest monthly average temperature in Granite Hills for August is 72 degrees
  • The lowest monthly average temperature in Granite Hills for December is 56 degrees
  • The most monthly precipitation in Granite Hills occurs in December with 2.5 inches
  • The air quality index in Granite Hills is 29% worse than the national average
  • The pollution index in Granite Hills is 97% better than the national average

Compare Granite Hills, CA Weather

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      Granite Hills 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
      January45°F69°F56°F1.9"
      February47°F69°F57°F2.2"
      March50°F70°F59°F1.0"
      April53°F72°F61°F0.7"
      May57°F72°F63°F0.4"
      June61°F76°F66°F0.0"
      July65°F80°F71°F0.2"
      August66°F82°F72°F0.0"
      September64°F83°F72°F0.2"
      October58°F80°F68°F0.5"
      November51°F74°F62°F0.9"
      December46°F68°F56°F2.5"

      Granite Hills 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 HillsCaliforniaNational
      Air quality index645550
      Pollution index162,74018,106,7265,066,862

      Granite Hills air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality87
      Days with moderate air quality253
      Days w/ poor A.Q. for sensitive groups23
      Days with unhealthy air quality2

      Granite Hills air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.003%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Granite Hills temperature with heat index

      Granite Hills monthly precipitation with daily maximum

      Granite Hills monthly snow depth with daily maximum

      Granite Hills monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      La Presa, CA37,1106428%
      Spring Valley CDP (Lake County), CA1,1546428%
      Casa de Oro-Mount Helix, CA20,1376428%
      Harbison Canyon, CA4,1286428%
      Rancho San Diego, CA22,0186428%
      Granite Hills, CA3,0716428%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Momence, IL3,0715510%
      Cliffwood Beach, NJ3,070512%
      Walbridge, OH3,0724020%
      North Shore, VA3,0703824%
      Bean Station, TN3,0704412%
      Granite Hills, CA3,0716428%
      Source: The Granite Hills, 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.