Edna, Texas · field elev 62 ft
Density Altitude at Jackson County (26R)
Jackson County sits at 62 ft, and even a typical August afternoon (94 °F) only lifts density altitude to about 2,319 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 | 53.0 | −303 ft | 63.0 | 357 ft |
| February | 56.9 | −44 ft | 67.0 | 616 ft |
| March | 63.3 | 376 ft | 73.3 | 1,020 ft |
| April | 69.4 | 771 ft | 79.6 | 1,418 ft |
| May | 76.1 | 1,198 ft | 85.4 | 1,780 ft |
| June | 81.4 | 1,531 ft | 90.1 | 2,069 ft |
| July | 83.2 | 1,643 ft | 92.6 | 2,222 ft |
| August | 84.1 | 1,699 ft | 94.2 | 2,319 ft |
| September | 80.3 | 1,462 ft | 90.1 | 2,069 ft |
| October | 72.1 | 944 ft | 83.1 | 1,637 ft |
| November | 62.4 | 318 ft | 72.8 | 988 ft |
| December | 55.4 | −143 ft | 65.3 | 506 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 26R
DENSITY ALTITUDE
Field elevation 62 ft — the air behaves like 2,307 ft.
- PRESSURE ALT
- 63 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
- T26 — Flying V Ranch
Louise · elev 60 ft
- TX0 — Shank N Bank
La Ward · elev 29 ft
- KVCT — Victoria Regional
Victoria · elev 115 ft
- KPKV — Calhoun County
Port Lavaca · elev 32 ft
- KPSX — Palacios Municipal
Palacios · elev 14 ft
- KARM — Wharton Regional
Wharton · elev 100 ft
- 34R — Hallettsville Municipal
Hallettsville · elev 278 ft
- 94R — Gav Air
Wharton · elev 90 ft
Frequently asked questions
How high does density altitude get at 26R in summer?
On a typical August afternoon — around 94 °F at the nearest NOAA normals station — density altitude at Jackson County reaches roughly 2,319 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 26R on an average day?
It swings with the seasons: from roughly −303 ft at the coldest month's average temperature to about 1,699 ft at the warmest month's — all from a constant field elevation of 62 ft. The month-by-month table above carries the full year.
What is the field elevation of Jackson County?
62 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 26R (FAA), in Edna, Texas.