Ackerman, Mississippi · field elev 552 ft
Density Altitude at Ackerman Choctaw County (9M4)
Ackerman Choctaw County sits at 552 ft, and even a typical July afternoon (92 °F) only lifts density altitude to about 2,751 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 | 44.4 | −274 ft | 55.0 | 436 ft |
| February | 48.0 | −31 ft | 58.9 | 693 ft |
| March | 55.7 | 482 ft | 67.8 | 1,270 ft |
| April | 63.0 | 961 ft | 75.0 | 1,729 ft |
| May | 71.4 | 1,501 ft | 82.5 | 2,198 ft |
| June | 78.2 | 1,930 ft | 89.0 | 2,599 ft |
| July | 81.0 | 2,105 ft | 91.5 | 2,751 ft |
| August | 80.5 | 2,074 ft | 91.0 | 2,721 ft |
| September | 75.2 | 1,741 ft | 86.2 | 2,427 ft |
| October | 64.5 | 1,058 ft | 76.5 | 1,823 ft |
| November | 53.5 | 337 ft | 64.8 | 1,077 ft |
| December | 46.5 | −132 ft | 56.8 | 555 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 9M4
DENSITY ALTITUDE
Field elevation 552 ft — the air behaves like 2,781 ft.
- PRESSURE ALT
- 553 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 Mississippi fields
- KLMS — Louisville/Winston County
Louisville · elev 575 ft
- 06M — Eupora
Eupora · elev 450 ft
- KOSX — Kosciusko-Attala County
Kosciusko · elev 494 ft
- KSTF — George M Bryan
Starkville · elev 333 ft
- 5A6 — Winona-Montgomery County
Winona · elev 364 ft
- M51 — Oktibbeha
Starkville · elev 250 ft
- KMPE — Philadelphia Municipal
Philadelphia · elev 458 ft
- M83 — Mccharen Field
West Point · elev 205 ft
Frequently asked questions
How high does density altitude get at 9M4 in summer?
On a typical July afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Ackerman Choctaw County reaches roughly 2,751 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 9M4 on an average day?
It swings with the seasons: from roughly −274 ft at the coldest month's average temperature to about 2,105 ft at the warmest month's — all from a constant field elevation of 552 ft. The month-by-month table above carries the full year.
What is the field elevation of Ackerman Choctaw County?
552 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 9M4 (FAA), in Ackerman, Mississippi.