Decatur, GA Weather & Climate Normals
Decatur's real weather, in one number
Decatur, GA scores 47/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 4 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Decatur's hottest and coldest months
Decatur's hottest month is Jul, averaging 80°F; its coldest is Jan, averaging 42°F, a 37.4°F swing across the year, a middling gap by national standards.
Rain and snow in Decatur
Over a typical year, Decatur sees about 51.43in of precipitation a year across roughly 128 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Decatur ranks
Decatur ranks 2636 of 4876 US cities in this dataset for comfort score, and 115 of 148 within GA. About 24,482 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from ATLANTA PEACHTREE AP, GA US, 7.2 miles from Decatur, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is