Decatur Georgia Climate Data

Monthly Average Climate Data for Decatur Georgia

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January32.0 °F52.2 °F4.71 in.
February34.9 °F56.1 °F4.84 in.
March41.5 °F64.2 °F5.13 in.
April49.5 °F72.2 °F4.22 in.
May58.7 °F79.5 °F3.84 in.
June66.6 °F85.7 °F4.44 in.
July69.9 °F88.4 °F5.16 in.
August69.1 °F87.8 °F4.37 in.
September63.1 °F82.5 °F4.16 in.
October51.6 °F73.1 °F3.82 in.
November40.5 °F62.8 °F4.36 in.
December35.1 °F54.7 °F4.83 in.
Annual51 °F71.6 °F53.88 in.

Climate Data for Decatur Georgia

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 8a : 10°F to 15°F
Plant Hardiness Zone - 2012Zone 7b : 5°F to 10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate