De Queen, Arkansas · field elev 355 ft
Density Altitude at J Lynn Helms Sevier County (KDEQ)
J Lynn Helms Sevier County sits at 355 ft, and even a typical August afternoon (93 °F) only lifts density altitude to about 2,621 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 | 43.0 | −614 ft | 54.7 | 173 ft |
| February | 47.0 | −343 ft | 58.9 | 450 ft |
| March | 54.8 | 179 ft | 67.3 | 996 ft |
| April | 62.2 | 666 ft | 74.6 | 1,462 ft |
| May | 70.8 | 1,221 ft | 81.8 | 1,914 ft |
| June | 78.7 | 1,720 ft | 89.3 | 2,377 ft |
| July | 82.0 | 1,927 ft | 93.0 | 2,603 ft |
| August | 81.7 | 1,908 ft | 93.3 | 2,621 ft |
| September | 75.2 | 1,500 ft | 87.6 | 2,273 ft |
| October | 63.7 | 763 ft | 76.6 | 1,588 ft |
| November | 52.7 | 40 ft | 65.0 | 848 ft |
| December | 45.1 | −472 ft | 56.4 | 285 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 KDEQ
DENSITY ALTITUDE
Field elevation 355 ft — the air behaves like 2,603 ft.
- PRESSURE ALT
- 356 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
- M77 — Howard County
Nashville · elev 553 ft
- KMEZ — Mena Intermountain Municipal
Mena · elev 1,080 ft
- KTXK — Texarkana Regional-Webb Field
Texarkana · elev 390 ft
- M18 — Hope Municipal
Hope · elev 359 ft
- M27 — Waldron Municipal
Waldron · elev 705 ft
- 7M3 — Bearce
Mount Ida · elev 644 ft
- 4F7 — Kizer Field
Prescott · elev 319 ft
- 5M8 — Gurdon Lowe Field
Gurdon · elev 229 ft
Frequently asked questions
How high does density altitude get at KDEQ in summer?
On a typical August afternoon — around 93 °F at the nearest NOAA normals station — density altitude at J Lynn Helms Sevier County reaches roughly 2,621 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 KDEQ on an average day?
It swings with the seasons: from roughly −614 ft at the coldest month's average temperature to about 1,927 ft at the warmest month's — all from a constant field elevation of 355 ft. The month-by-month table above carries the full year.
What is the field elevation of J Lynn Helms Sevier County?
355 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KDEQ (ICAO) / DEQ (FAA), in De Queen, Arkansas.