Meridian, Mississippi · field elev 298 ft
Density Altitude at Key Field (KMEI)
Key Field sits at 298 ft, and even a typical July afternoon (93 °F) only lifts density altitude to about 2,552 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 | 47.7 | −366 ft | 59.0 | 386 ft |
| February | 51.7 | −98 ft | 63.8 | 700 ft |
| March | 58.5 | 353 ft | 71.2 | 1,176 ft |
| April | 65.4 | 803 ft | 78.2 | 1,619 ft |
| May | 73.3 | 1,310 ft | 85.3 | 2,062 ft |
| June | 80.0 | 1,732 ft | 91.0 | 2,412 ft |
| July | 82.7 | 1,900 ft | 93.3 | 2,552 ft |
| August | 82.2 | 1,869 ft | 93.1 | 2,539 ft |
| September | 77.3 | 1,563 ft | 88.9 | 2,283 ft |
| October | 66.6 | 881 ft | 79.5 | 1,701 ft |
| November | 55.8 | 175 ft | 68.7 | 1,016 ft |
| December | 49.9 | −218 ft | 61.1 | 524 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 KMEI
DENSITY ALTITUDE
Field elevation 298 ft — the air behaves like 2,533 ft.
- PRESSURE ALT
- 299 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
- 23M — Clarke County
Quitman · elev 321 ft
- M23 — James H Easom Field
Newton · elev 370 ft
- 00M — Thigpen Field
Bay Springs · elev 351 ft
- KMPE — Philadelphia Municipal
Philadelphia · elev 458 ft
- 2M4 — G V Montgomery
Forest · elev 518 ft
- 2R0 — Waynesboro Municipal
Waynesboro · elev 169 ft
- KLUL — Hesler/Noble Field
Laurel · elev 238 ft
- 08M — Carthage-Leake County
Carthage · elev 457 ft
Frequently asked questions
How high does density altitude get at KMEI in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Key Field reaches roughly 2,552 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 KMEI on an average day?
It swings with the seasons: from roughly −366 ft at the coldest month's average temperature to about 1,900 ft at the warmest month's — all from a constant field elevation of 298 ft. The month-by-month table above carries the full year.
What is the field elevation of Key Field?
298 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMEI (ICAO) / MEI (FAA), in Meridian, Mississippi.