Atlanta, Georgia · field elev 1,026 ft
Density Altitude at Hartsfield/Jackson Atlanta International (KATL)
Hartsfield/Jackson Atlanta International sits at 1,026 ft, and even a typical July afternoon (90 °F) only lifts density altitude to about 3,243 ft — heat still trims performance, but the field rarely turns high-and-hot.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 44.8 | 341 ft | 54.0 | 956 ft |
| February | 48.5 | 590 ft | 58.2 | 1,232 ft |
| March | 55.6 | 1,061 ft | 65.9 | 1,731 ft |
| April | 63.2 | 1,557 ft | 73.8 | 2,234 ft |
| May | 71.2 | 2,069 ft | 81.1 | 2,690 ft |
| June | 77.9 | 2,491 ft | 87.1 | 3,060 ft |
| July | 80.9 | 2,678 ft | 90.1 | 3,243 ft |
| August | 80.2 | 2,634 ft | 89.0 | 3,176 ft |
| September | 74.9 | 2,303 ft | 83.9 | 2,863 ft |
| October | 64.7 | 1,654 ft | 74.4 | 2,272 ft |
| November | 54.2 | 969 ft | 64.1 | 1,615 ft |
| December | 47.3 | 510 ft | 56.2 | 1,101 ft |
▲ above 5,000 ft · ⚠ above 8,000 ft. These are planning references at standard pressure and dry air — afternoon humidity and low pressure both push the real number higher. Run today's values below.
Run today’s numbers for KATL
DENSITY ALTITUDE
Field elevation 1,026 ft — the air behaves like 3,236 ft.
- PRESSURE ALT
- 1,027 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
- —
- AIR DENSITY
- —
- WATER · GRAINS/LB
- —
For training and reference · verify with official sources and your POH before flight · no tool on this site renders a go / no-go judgment
Nearby Georgia fields
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- KFFC — Atlanta Regional Falcon Field
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- KRYY — Cobb County International/Mccollum Field
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- 6A2 — Griffin-Spalding County
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- KCCO — Newnan Coweta County
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- GA2 — Peach State Aerodrome
Williamson · elev 926 ft
Frequently asked questions
How high does density altitude get at KATL in summer?
On a typical July afternoon — around 90 °F at the nearest NOAA normals station — density altitude at Hartsfield/Jackson Atlanta International reaches roughly 3,243 ft at standard pressure. Hotter-than-normal days, low pressure, and humidity all push it higher, so run the day's actual numbers before flying.
What is the density altitude at KATL on an average day?
It swings with the seasons: from roughly 341 ft at the coldest month's average temperature to about 2,678 ft at the warmest month's — all from a constant field elevation of 1,026 ft. The month-by-month table above carries the full year.
What is the field elevation of Hartsfield/Jackson Atlanta International?
1,026 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KATL (ICAO) / ATL (FAA), in Atlanta, Georgia.