TODAY NOV16
TEMPERATURE33
HUMIDITY78
PRESSURE30.13
WIND COND.320 12.8
  • 5336Fri
  • 6041Sat
  • 6143Sun
  • 6042Mon
  • 5736Tue
daynightWeather update from Marietta / Dobbins Air Force Base at

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Marietta 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°F54°F43°F8.0"
February35°F57°F45°F6.6"
March44°F67°F55°F6.9"
April51°F75°F63°F8.0"
May59°F81°F70°F8.0"
June68°F88°F78°F7.0"
July70°F89°F79°F8.2"
August70°F89°F79°F7.2"
September64°F83°F73°F9.0"
October52°F74°F62°F9.1"
November41°F64°F52°F8.1"
December38°F57°F47°F9.2"

Did you know?

  • The highest monthly average temperature in Marietta for July is 79 degrees.
  • The lowest monthly average temperature in Marietta for January is 43 degrees.
  • The most monthly precipitation in Marietta occurs in December with 9.2 inches.
  • The air quality index in Marietta is 4% worse than the national average.
  • The pollution index in Marietta is 179% worse than the national average.

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Compare Marietta, GA Weather To Other Cities

Marietta 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.
IndexMariettaGeorgiaNational
Air quality index524150
Pollution index14,162,5003,237,5535,066,862

Marietta 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

Marietta air quality information

PollutantTotal
Arsenic0.220%
Benzene0.180%
Carbon Tetrachloride0.040%
Lead0.100%
Mercury0.040%

Average monthly Marietta temperature with heat index

Marietta monthly precipitation with daily maximum

Marietta monthly snow depth with daily maximum

Marietta monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Atlanta, GA456,378524%
Chamblee, GA27,862524%
Dunwoody, GA48,128524%
Holly Springs, GA10,351524%
Milton, GA36,755524%
Marietta, GA59,714524%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Petaluma, CA59,7573530%
Springfield, OH59,7614216%
Lakeville, MN59,7864412%
Gardena, CA59,8987448%
St. Clair Shores, MI59,916524%
Marietta, GA59,714524%
Source: The Marietta, 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.