Cotulla, Texas · field elev 474 ft
Density Altitude at Cotulla-La Salle County (KCOT)
Cotulla-La Salle County sits at 474 ft, and even a typical August afternoon (100 °F) only lifts density altitude to about 3,186 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 | 55.7 | 386 ft | 67.4 | 1,149 ft |
| February | 60.9 | 728 ft | 73.6 | 1,545 ft |
| March | 67.2 | 1,136 ft | 79.7 | 1,929 ft |
| April | 73.4 | 1,532 ft | 86.0 | 2,319 ft |
| May | 80.7 | 1,991 ft | 92.8 | 2,735 ft |
| June | 85.7 | 2,301 ft | 97.9 | 3,043 ft |
| July | 87.0 | 2,381 ft | 99.2 | 3,121 ft |
| August | 87.7 | 2,424 ft | 100.3 | 3,186 ft |
| September | 82.4 | 2,097 ft | 93.9 | 2,802 ft |
| October | 74.7 | 1,614 ft | 86.6 | 2,356 ft |
| November | 64.0 | 929 ft | 75.7 | 1,677 ft |
| December | 56.8 | 459 ft | 68.7 | 1,232 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 KCOT
DENSITY ALTITUDE
Field elevation 474 ft — the air behaves like 3,169 ft.
- PRESSURE ALT
- 475 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
- 24R — Dilley Airpark
Dilley · elev 542 ft
- T30 — Mc Kinley Field
Pearsall · elev 586 ft
- KCZT — Dimmit County
Carrizo Springs · elev 598 ft
- 23R — Devine Municipal
Devine · elev 702 ft
- T19 — Duval-Freer
Freer · elev 564 ft
- KPEZ — Pleasanton Municipal
Pleasanton · elev 430 ft
- KUVA — Garner Field
Uvalde · elev 942 ft
- KHDO — South Texas Regional At Hondo
Hondo · elev 930 ft
Frequently asked questions
How high does density altitude get at KCOT in summer?
On a typical August afternoon — around 100 °F at the nearest NOAA normals station — density altitude at Cotulla-La Salle County reaches roughly 3,186 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 KCOT on an average day?
It swings with the seasons: from roughly 386 ft at the coldest month's average temperature to about 2,424 ft at the warmest month's — all from a constant field elevation of 474 ft. The month-by-month table above carries the full year.
What is the field elevation of Cotulla-La Salle County?
474 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KCOT (ICAO) / COT (FAA), in Cotulla, Texas.