Rocksprings, Texas · field elev 2,372 ft
Density Altitude at Edwards County (KECU)
Edwards County sits at 2,372 ft, and even a typical August afternoon (91 °F) only lifts density altitude to about 4,950 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 | 47.8 | 2,209 ft | 58.5 | 2,910 ft |
| February | 51.7 | 2,467 ft | 62.5 | 3,167 ft |
| March | 58.1 | 2,884 ft | 69.5 | 3,611 ft |
| April | 65.3 | 3,346 ft | 76.9 | 4,073 ft |
| May | 72.2 | 3,781 ft | 82.8 | 4,436 ft |
| June | 77.9 | 4,135 ft | 88.3 | 4,769 ft |
| July | 80.1 | 4,270 ft | 90.8 | 4,920 ft |
| August | 80.5 | 4,295 ft | 91.3 | 4,950 ft |
| September | 74.9 | 3,949 ft | 84.9 | 4,564 ft |
| October | 66.5 | 3,422 ft | 76.7 | 4,061 ft |
| November | 56.0 | 2,748 ft | 66.0 | 3,390 ft |
| December | 48.9 | 2,282 ft | 59.3 | 2,961 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 KECU
DENSITY ALTITUDE
Field elevation 2,372 ft — the air behaves like 4,932 ft.
- PRESSURE ALT
- 2,373 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
- 49R — Real County
Leakey · elev 1,640 ft
- 11T — Rocking L
Sonora · elev 2,339 ft
- 10X — Ox Ranch
Uvalde · elev 1,305 ft
- KJCT — Kimble County
Junction · elev 1,754 ft
- KSOA — Sonora Municipal
Sonora · elev 2,140 ft
- KUVA — Garner Field
Uvalde · elev 942 ft
- KDRT — Del Rio International
Del Rio · elev 1,002 ft
- KERV — Kerrville Municipal/Louis Schreiner Field
Kerrville · elev 1,617 ft
Frequently asked questions
How high does density altitude get at KECU in summer?
On a typical August afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Edwards County reaches roughly 4,950 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 KECU on an average day?
It swings with the seasons: from roughly 2,209 ft at the coldest month's average temperature to about 4,295 ft at the warmest month's — all from a constant field elevation of 2,372 ft. The month-by-month table above carries the full year.
What is the field elevation of Edwards County?
2,372 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KECU (ICAO) / ECU (FAA), in Rocksprings, Texas.