Duncan, Oklahoma · field elev 1,114 ft
Density Altitude at Halliburton Field (KDUC)
Halliburton Field sits at 1,114 ft, and even a typical July afternoon (94 °F) only lifts density altitude to about 3,555 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 | 40.2 | 138 ft | 51.9 | 926 ft |
| February | 44.2 | 410 ft | 56.5 | 1,229 ft |
| March | 53.0 | 999 ft | 64.8 | 1,769 ft |
| April | 61.2 | 1,536 ft | 73.4 | 2,316 ft |
| May | 69.7 | 2,082 ft | 80.5 | 2,760 ft |
| June | 78.2 | 2,617 ft | 88.5 | 3,252 ft |
| July | 82.6 | 2,890 ft | 93.5 | 3,555 ft |
| August | 82.0 | 2,853 ft | 93.2 | 3,537 ft |
| September | 74.6 | 2,392 ft | 85.8 | 3,087 ft |
| October | 63.1 | 1,659 ft | 75.5 | 2,448 ft |
| November | 51.3 | 886 ft | 63.5 | 1,685 ft |
| December | 42.1 | 268 ft | 53.6 | 1,038 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 KDUC
DENSITY ALTITUDE
Field elevation 1,114 ft — the air behaves like 3,585 ft.
- PRESSURE ALT
- 1,115 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 Oklahoma fields
- 3O5 — Walters Municipal
Walters · elev 1,058 ft
- KLAW — Lawton-Fort Sill Regional
Lawton · elev 1,110 ft
- F32 — Healdton Municipal
Healdton · elev 956 ft
- 1K2 — Lindsay Municipal
Lindsay · elev 968 ft
- 92F — Chattanooga Sky Harbor
Chattanooga · elev 1,135 ft
- KCHK — Chickasha Municipal
Chickasha · elev 1,152 ft
- F68 — Anadarko Municipal
Anadarko · elev 1,291 ft
- KPVJ — Pauls Valley Municipal
Pauls Valley · elev 971 ft
Frequently asked questions
How high does density altitude get at KDUC in summer?
On a typical July afternoon — around 94 °F at the nearest NOAA normals station — density altitude at Halliburton Field reaches roughly 3,555 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 KDUC on an average day?
It swings with the seasons: from roughly 138 ft at the coldest month's average temperature to about 2,890 ft at the warmest month's — all from a constant field elevation of 1,114 ft. The month-by-month table above carries the full year.
What is the field elevation of Halliburton Field?
1,114 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KDUC (ICAO) / DUC (FAA), in Duncan, Oklahoma.