Nashville, Arkansas · field elev 553 ft
Density Altitude at Howard County (M77)
Howard County sits at 553 ft, and even a typical August afternoon (94 °F) only lifts density altitude to about 2,898 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 | 42.9 | −375 ft | 54.0 | 371 ft |
| February | 46.7 | −117 ft | 58.5 | 668 ft |
| March | 54.3 | 391 ft | 66.5 | 1,188 ft |
| April | 62.1 | 903 ft | 74.7 | 1,711 ft |
| May | 70.8 | 1,464 ft | 81.7 | 2,150 ft |
| June | 78.6 | 1,956 ft | 89.3 | 2,618 ft |
| July | 82.4 | 2,193 ft | 93.4 | 2,868 ft |
| August | 82.1 | 2,175 ft | 93.9 | 2,898 ft |
| September | 75.7 | 1,774 ft | 87.9 | 2,533 ft |
| October | 64.3 | 1,046 ft | 77.2 | 1,869 ft |
| November | 53.1 | 311 ft | 65.1 | 1,098 ft |
| December | 45.3 | −212 ft | 56.4 | 530 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 M77
DENSITY ALTITUDE
Field elevation 553 ft — the air behaves like 2,904 ft.
- PRESSURE ALT
- 554 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
- M18 — Hope Municipal
Hope · elev 359 ft
- 4F7 — Kizer Field
Prescott · elev 319 ft
- KDEQ — J Lynn Helms Sevier County
De Queen · elev 355 ft
- KTXK — Texarkana Regional-Webb Field
Texarkana · elev 390 ft
- 5M8 — Gurdon Lowe Field
Gurdon · elev 229 ft
- 7M3 — Bearce
Mount Ida · elev 644 ft
- KMEZ — Mena Intermountain Municipal
Mena · elev 1,080 ft
- KADF — Dexter B Florence Meml Field
Arkadelphia · elev 182 ft
Frequently asked questions
How high does density altitude get at M77 in summer?
On a typical August afternoon — around 94 °F at the nearest NOAA normals station — density altitude at Howard County reaches roughly 2,898 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 M77 on an average day?
It swings with the seasons: from roughly −375 ft at the coldest month's average temperature to about 2,193 ft at the warmest month's — all from a constant field elevation of 553 ft. The month-by-month table above carries the full year.
What is the field elevation of Howard County?
553 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is M77 (FAA), in Nashville, Arkansas.