HARTSFIELD-JACKSON ATLANTA weather by month
Averages and records for each calendar month at HARTSFIELD-JACKSON ATLANTA, United States, from 1930 to 2026. The warmest month is July, averaging 31.7°C; the coolest is January at 11.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 11.4°C | 1.4°C | 26.1°C11 January 1949 | −22.2°C21 January 1985 | 97 / 97 |
| February | 13.8°C | 2.9°C | 27.2°C22 February 2023 | −15.0°C17 February 1958 | 97 / 97 |
| March | 18.0°C | 6.4°C | 31.7°C23 March 1995 | −12.2°C5 March 1960 | 97 / 97 |
| April | 22.8°C | 10.8°C | 33.9°C27 April 1986 | −3.3°C11 April 1973 | 97 / 97 |
| May | 26.9°C | 15.6°C | 36.1°C29 May 1941 | 2.8°C4 May 1971 | 97 / 97 |
| June | 30.5°C | 19.8°C | 41.1°C30 June 2012 | 7.8°C3 June 1956 | 97 / 97 |
| July | 31.7°C | 21.4°C | 40.6°C13 July 1980 | 11.7°C15 July 1967 | 97 / 97 |
| August | 31.2°C | 21.1°C | 40.0°C22 August 2007 | 12.8°C30 August 1986 | 97 / 97 |
| September | 28.3°C | 18.1°C | 37.2°C8 September 1941 | 2.2°C30 September 1967 | 96 / 97 |
| October | 23.0°C | 11.9°C | 36.7°C3 October 2019 | −2.2°C29 October 1976 | 96 / 96 |
| November | 17.3°C | 6.2°C | 28.9°C2 November 1961 | −16.1°C25 November 1950 | 96 / 96 |
| December | 12.6°C | 2.6°C | 26.1°C1 December 1991 | −17.8°C25 December 1983 | 96 / 96 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 96 to 97 years each.
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Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.