Iuka, Mississippi · field elev 626 ft
Density Altitude at Segars Field (15M)
Segars Field sits at 626 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 2,652 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 | 38.6 | −579 ft | 49.4 | 155 ft |
| February | 42.4 | −318 ft | 54.2 | 475 ft |
| March | 50.0 | 195 ft | 62.9 | 1,045 ft |
| April | 58.7 | 771 ft | 72.0 | 1,630 ft |
| May | 67.1 | 1,316 ft | 79.1 | 2,077 ft |
| June | 74.5 | 1,788 ft | 85.7 | 2,486 ft |
| July | 77.8 | 1,996 ft | 88.4 | 2,652 ft |
| August | 77.1 | 1,952 ft | 88.3 | 2,646 ft |
| September | 71.5 | 1,598 ft | 84.1 | 2,388 ft |
| October | 59.8 | 843 ft | 73.5 | 1,725 ft |
| November | 49.0 | 128 ft | 62.0 | 987 ft |
| December | 41.6 | −373 ft | 52.1 | 335 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 15M
DENSITY ALTITUDE
Field elevation 626 ft — the air behaves like 2,628 ft.
- PRESSURE ALT
- 627 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
- 01M — Tishomingo County
Belmont · elev 584 ft
- KCRX — Roscoe Turner
Corinth · elev 425 ft
- 8M1 — Booneville/Baldwyn
Booneville/Baldwyn · elev 392 ft
- 25M — Ripley
Ripley · elev 467 ft
- KTUP — Tupelo Regional
Tupelo · elev 347 ft
- M72 — New Albany/Union County
New Albany · elev 413 ft
- 22M — Pontotoc County
Pontotoc · elev 440 ft
- 5A4 — Okolona Municipal/Richard Stovall Field
Okolona · elev 337 ft
Frequently asked questions
How high does density altitude get at 15M in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Segars Field reaches roughly 2,652 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 15M on an average day?
It swings with the seasons: from roughly −579 ft at the coldest month's average temperature to about 1,996 ft at the warmest month's — all from a constant field elevation of 626 ft. The month-by-month table above carries the full year.
What is the field elevation of Segars Field?
626 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 15M (FAA), in Iuka, Mississippi.