TODAY AUG14
TEMPERATURE66
HUMIDITY96
PRESSURE30.04
WIND COND.
  • 9173Wed
  • 9073Thu20%30%
  • 8873Fri50%50%
  • 8772Sat60%60%
  • 8772Sun40%40%
daynightWeather update from Atlanta, De Kalb-Peachtree Airport at

Stone Mountain 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
January36°F57°F45°F4.9"
February35°F58°F46°F8.7"
March43°F68°F55°F9.3"
April47°F72°F59°F8.7"
May56°F81°F68°F6.6"
June66°F88°F76°F6.3"
July69°F88°F77°F12.9"
August71°F93°F80°F9.3"
September65°F87°F75°F4.1"
October54°F76°F64°F6.4"
November41°F66°F52°F4.0"
December36°F56°F45°F8.1"

Did you know?

  • The highest monthly average temperature in Stone Mountain for August is 80 degrees.
  • The lowest monthly average temperature in Stone Mountain for December is 45 degrees.
  • The most monthly precipitation in Stone Mountain occurs in July with 12.9 inches.
  • The air quality index in Stone Mountain is 4% worse than the national average.
  • The pollution index in Stone Mountain is 166% worse than the national average.

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Compare Stone Mountain, GA Weather To Other Cities

Stone Mountain 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.
IndexStone MountainGeorgiaNational
Air quality index524150
Pollution index13,513,5003,237,5535,066,862

Stone Mountain air quality information

MeasurementTotal
Days measured365
Days with good air quality175
Days with moderate air quality187
Days w/ poor A.Q. for sensitive groups2
Days with unhealthy air quality1

Stone Mountain air quality information

PollutantTotal
Arsenic0.170%
Benzene0.180%
Carbon Tetrachloride0.040%
Lead0.080%
Mercury0.005%

Average monthly Stone Mountain temperature with heat index

Stone Mountain monthly precipitation with daily maximum

Stone Mountain monthly snow depth with daily maximum

Stone Mountain monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Lawrenceville, GA30,1274216%
Avondale Estates, GA3,095524%
Candler-McAfee, GA23,478524%
Conyers, GA15,682524%
Duluth, GA28,681524%
Stone Mountain, GA6,102524%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Braidwood, IL6,102198%
Somerset, PA6,1023236%
Cheshire Village, CT6,103492%
Brunswick, MD6,1014118%
Manistee, MI6,1003530%
Stone Mountain, GA6,102524%
Source: The Stone Mountain, GA 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.