Dermott, Arkansas · field elev 135 ft
Density Altitude at Dermott Municipal (4M5)
Dermott Municipal sits at 135 ft, and even a typical July afternoon (91 °F) only lifts density altitude to about 2,213 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 | 42.4 | −929 ft | 50.8 | −360 ft |
| February | 46.3 | −663 ft | 55.4 | −53 ft |
| March | 54.6 | −106 ft | 64.1 | 518 ft |
| April | 63.1 | 453 ft | 73.1 | 1,097 ft |
| May | 71.7 | 1,008 ft | 81.6 | 1,633 ft |
| June | 78.8 | 1,457 ft | 88.3 | 2,048 ft |
| July | 81.4 | 1,620 ft | 91.0 | 2,213 ft |
| August | 80.5 | 1,564 ft | 91.0 | 2,213 ft |
| September | 74.9 | 1,211 ft | 86.2 | 1,918 ft |
| October | 64.2 | 525 ft | 76.1 | 1,287 ft |
| November | 53.0 | −213 ft | 63.2 | 460 ft |
| December | 44.9 | −758 ft | 53.3 | −193 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 4M5
DENSITY ALTITUDE
Field elevation 135 ft — the air behaves like 2,213 ft.
- PRESSURE ALT
- 136 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 Arkansas fields
- 7M1 — Mc Gehee Municipal
Mc Gehee · elev 141 ft
- M32 — Lake Village Municipal
Lake Village · elev 126 ft
- KLLQ — Monticello Municipal/Ellis Field
Monticello · elev 268 ft
- 0M0 — Billy Free Municipal
Dumas · elev 164 ft
- KCRT — Z M Jack Stell Field
Crossett · elev 184 ft
- 3M9 — Warren Municipal/John B Frazer Jr Field
Warren · elev 235 ft
- 55M — Jb West Municipal Airport
Star City · elev 398 ft
- 5M1 — Dewitt Municipal/Whitcomb Field
De Witt · elev 189 ft
Frequently asked questions
How high does density altitude get at 4M5 in summer?
On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Dermott Municipal reaches roughly 2,213 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 4M5 on an average day?
It swings with the seasons: from roughly −929 ft at the coldest month's average temperature to about 1,620 ft at the warmest month's — all from a constant field elevation of 135 ft. The month-by-month table above carries the full year.
What is the field elevation of Dermott Municipal?
135 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 4M5 (FAA), in Dermott, Arkansas.