TODAY OCT19
TEMPERATURE62
HUMIDITY62
PRESSURE30.33
WIND COND.
  • 7059Fri
  • 6944Sat60%60%
  • 6142Sun
  • 6448Mon
  • 6951Tue
daynightWeather update from Atlanta, De Kalb-Peachtree Airport at
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Decatur 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
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 Decatur for August is 80 degrees.
  • The lowest monthly average temperature in Decatur for December is 45 degrees.
  • The most monthly precipitation in Decatur occurs in July with 12.9 inches.
  • The air quality index in Decatur is 4% worse than the national average.
  • The pollution index in Decatur is 294% worse than the national average.

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Decatur 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.
IndexDecaturGeorgiaNational
Air quality index524150
Pollution index19,982,2003,237,5535,066,862

Decatur 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

Decatur air quality information

PollutantTotal
Arsenic0.210%
Benzene0.260%
Carbon Tetrachloride0.050%
Lead0.100%
Mercury0.010%

Average monthly Decatur temperature with heat index

Decatur monthly precipitation with daily maximum

Decatur monthly snow depth with daily maximum

Decatur monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Avondale Estates, GA3,095524%
Candler-McAfee, GA23,478524%
Conley, GA5,397524%
East Point, GA35,477524%
Hapeville, GA6,658524%
Decatur, GA21,210524%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Clinton, UT21,210492%
Patterson, CA21,2055510%
Oxford, AL21,2023824%
South Milwaukee, WI21,1974510%
Arnold, MO21,1966020%
Decatur, GA21,210524%
Source: The Decatur, 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.