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DeKalb County, GA

: September 2026 so far averaged 77.3°F in DeKalb County, GA, the warmest 1 to 29 September in the county average since 2019, 3rd warmest of 76 (county average from NOAA gridded data, 1951 to 2026).

Last updated . This page normally updates every day; the latest update is late.

High
82.3°F
Warmest since 2025
20th warmest of 76
Low
50.9°F
Coldest since 2022
17th coldest of 76

No measurable precipitation in the county average of DeKalb County, GA for 5 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).

Every 29 September low of the county average in DeKalb County, GA since 1951: 50.9°F in 2026; the lowest is 40.1°F, in 1962.
2022: 47.9°F1962: 40.1°F2026: 50.9°F 2026 50.9°F 1962 40.1°F since 2022 1951 2026
  • Normal range, 47.4 to 67.6°F
Every year as a table

Every 29 September high of the county average in DeKalb County, GA since 1951: 82.3°F in 2026; the highest is 91.5°F, in 1986.

YearHigh, °FLow, °F
202682.350.9
202585.163
202476.162.9
202379.556.7
202274.347.9
202183.558.4
202081.157.4
201991.369.5
201883.367.4
201790.164.8
201687.255.9
201573.366.9
201474.264.2
201374.852.8
201284.360.5
201178.959.6
201076.753.8
200981.150.5
200885.359
200783.954.4
200679.947.4
200582.466.9
200478.259.8
200372.445.4
200278.463.6
200176.447.1
200074.949.2
199980.571.8
199879.369.8
199769.960.6
19967352.9
199576.454.1
199480.750.5
199376.946.1
199275.961.6
199175.848.2
199081.158.8
198959.853.4
19887956.2
198780.860
198691.565.6
198573.247.4
198473.156.8
198374.850.9
198278.653.7
198185.948.9
198060.755.2
197978.164.5
197881.459.9
197778.453.7
197681.664.4
197573.652.3
197480.366.8
197380.265.1
197285.766.3
197181.762.4
197072.145.1
196982.655
196880.859.8
196763.641.1
196676.663.5
19656759.5
196481.870.6
196369.159.3
196271.140.1
196183.755.1
196067.660.4
195985.163.7
195876.349
195754.650
195676.753.3
195583.662.4
195490.463.2
195385.956.2
19528055
195176.352.8

The month

August 2026 averaged 80.7°F in DeKalb County, GA, the warmest August in the county average since 2016, 10th warmest of 132 (county average from NOAA's monthly county data, 1895 to 2026).

The month in words
  • Tuesday 29 September 2026: a high of 82.3°F averaged over DeKalb County, GA, the warmest 29 September in the county average since 2025, 20th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
  • Tuesday 29 September 2026: a low of 50.9°F averaged over DeKalb County, GA, the coldest 29 September night in the county average since 2022, tied 17th coldest of 76 (with 1983) (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Atlanta, GA 15.8 mi, the nearest city with its own station