Uvalde, Texas · field elev 1,305 ft
Density Altitude at Ox Ranch (10X)
Ox Ranch sits at 1,305 ft, and even a typical August afternoon (95 °F) only lifts density altitude to about 3,853 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 | 48.6 | 942 ft | 62.7 | 1,868 ft |
| February | 53.1 | 1,241 ft | 67.0 | 2,144 ft |
| March | 59.9 | 1,687 ft | 73.5 | 2,557 ft |
| April | 66.9 | 2,138 ft | 79.9 | 2,956 ft |
| May | 74.6 | 2,626 ft | 86.2 | 3,344 ft |
| June | 80.5 | 2,994 ft | 91.5 | 3,666 ft |
| July | 82.5 | 3,117 ft | 93.9 | 3,811 ft |
| August | 82.8 | 3,136 ft | 94.6 | 3,853 ft |
| September | 77.4 | 2,801 ft | 89.6 | 3,551 ft |
| October | 68.5 | 2,240 ft | 81.0 | 3,025 ft |
| November | 57.7 | 1,543 ft | 70.6 | 2,373 ft |
| December | 50.1 | 1,042 ft | 63.6 | 1,926 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 10X
DENSITY ALTITUDE
Field elevation 1,305 ft — the air behaves like 3,877 ft.
- PRESSURE ALT
- 1,306 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
- KUVA — Garner Field
Uvalde · elev 942 ft
- 49R — Real County
Leakey · elev 1,640 ft
- KECU — Edwards County
Rocksprings · elev 2,372 ft
- 5T9 — Maverick County Meml International
Eagle Pass · elev 887 ft
- KDRT — Del Rio International
Del Rio · elev 1,002 ft
- KHDO — South Texas Regional At Hondo
Hondo · elev 930 ft
- 11T — Rocking L
Sonora · elev 2,339 ft
- KCZT — Dimmit County
Carrizo Springs · elev 598 ft
Frequently asked questions
How high does density altitude get at 10X in summer?
On a typical August afternoon — around 95 °F at the nearest NOAA normals station — density altitude at Ox Ranch reaches roughly 3,853 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 10X on an average day?
It swings with the seasons: from roughly 942 ft at the coldest month's average temperature to about 3,136 ft at the warmest month's — all from a constant field elevation of 1,305 ft. The month-by-month table above carries the full year.
What is the field elevation of Ox Ranch?
1,305 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 10X (FAA), in Uvalde, Texas.