Dumas, Texas · field elev 3,706 ft
Density Altitude at Moore County (KDUX)
From a field elevation of 3,706 ft, a typical July afternoon at Moore County (92 °F) raises density altitude to about 6,619 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 35.6 | 3,046 ft | 49.2 | 3,949 ft |
| February | 38.7 | 3,254 ft | 53.4 | 4,222 ft |
| March | 46.9 | 3,798 ft | 62.0 | 4,772 ft |
| April | 54.4 | 4,286 ft | 69.7 | 5,255 ft ▲ |
| May | 64.4 | 4,924 ft | 79.0 | 5,828 ft ▲ |
| June | 74.6 | 5,558 ft | 89.1 | 6,435 ft ▲ |
| July | 78.7 | 5,809 ft | 92.2 | 6,619 ft ▲ |
| August | 77.1 | 5,712 ft | 90.3 | 6,507 ft ▲ |
| September | 69.6 | 5,249 ft | 83.2 | 6,082 ft ▲ |
| October | 57.3 | 4,473 ft | 71.6 | 5,373 ft ▲ |
| November | 45.1 | 3,680 ft | 58.9 | 4,575 ft |
| December | 36.1 | 3,079 ft | 49.0 | 3,936 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 KDUX
DENSITY ALTITUDE caution
Field elevation 3,706 ft — the air behaves like 6,607 ft.
- PRESSURE ALT
- 3,708 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 Texas fields
- X43 — Sunray
Sunray · elev 3,507 ft
- KDHT — Dalhart Municipal
Dalhart · elev 3,991 ft
- H70 — Stratford Field
Stratford · elev 3,668 ft
- KBGD — Hutchinson County
Borger · elev 3,055 ft
- E19 — Gruver Municipal
Gruver · elev 3,205 ft
- KAMA — Rick Husband Amarillo International
Amarillo · elev 3,607 ft
- E52 — Oldham County
Vega · elev 3,995 ft
- KTDW — Tradewind
Amarillo · elev 3,649 ft
Frequently asked questions
How high does density altitude get at KDUX in summer?
On a typical July afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Moore County reaches roughly 6,619 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 KDUX on an average day?
It swings with the seasons: from roughly 3,046 ft at the coldest month's average temperature to about 5,809 ft at the warmest month's — all from a constant field elevation of 3,706 ft. The month-by-month table above carries the full year.
What is the field elevation of Moore County?
3,706 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KDUX (ICAO) / DUX (FAA), in Dumas, Texas.