TODAY AUG14
TEMPERATURE83
HUMIDITY59
PRESSURE
WIND COND.30 5
  • 8667Wed
  • 8767Thu
  • 8967Fri
  • 9067Sat
  • 9067Sun
daynightWeather update from EW4858 El Cajon at

Granite Hills Average Weather

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"

Did you know?

  • 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 22% worse than the national average.
  • The pollution index in Granite Hills is 96% better than the national average.

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Compare Granite Hills, CA Weather To Other Cities

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 index615550
Pollution index162,74018,106,7265,066,862

Granite Hills air quality information

MeasurementTotal
Days measured365
Days with good air quality69
Days with moderate air quality277
Days w/ poor A.Q. for sensitive groups17
Days with unhealthy air quality1

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.
Eucalyptus Hills, CA5,5836122%
La Mesa, CA59,1256122%
Poway, CA49,6756122%
Santee, CA56,8396122%
Casa de Oro-Mount Helix, CA20,1376122%
Granite Hills, CA3,0716122%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Momence, IL3,0716020%
Walbridge, OH3,0723628%
North Shore, VA3,0703628%
Bean Station, TN3,0703922%
Cliffwood Beach, NJ3,070536%
Granite Hills, CA3,0716122%
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.