Leakey, Texas · field elev 1,640 ft
Density Altitude at Real County (49R)
Real County sits at 1,640 ft, and even a typical August afternoon (95 °F) only lifts density altitude to about 4,259 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 | 1,357 ft | 62.7 | 2,280 ft |
| February | 53.1 | 1,655 ft | 67.0 | 2,556 ft |
| March | 59.9 | 2,099 ft | 73.5 | 2,967 ft |
| April | 66.9 | 2,549 ft | 79.9 | 3,365 ft |
| May | 74.6 | 3,036 ft | 86.2 | 3,752 ft |
| June | 80.5 | 3,402 ft | 91.5 | 4,073 ft |
| July | 82.5 | 3,526 ft | 93.9 | 4,218 ft |
| August | 82.8 | 3,544 ft | 94.6 | 4,259 ft |
| September | 77.4 | 3,210 ft | 89.6 | 3,959 ft |
| October | 68.5 | 2,651 ft | 81.0 | 3,433 ft |
| November | 57.7 | 1,956 ft | 70.6 | 2,784 ft |
| December | 50.1 | 1,457 ft | 63.6 | 2,338 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 49R
DENSITY ALTITUDE
Field elevation 1,640 ft — the air behaves like 4,283 ft.
- PRESSURE ALT
- 1,641 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
- KECU — Edwards County
Rocksprings · elev 2,372 ft
- 10X — Ox Ranch
Uvalde · elev 1,305 ft
- KUVA — Garner Field
Uvalde · elev 942 ft
- KERV — Kerrville Municipal/Louis Schreiner Field
Kerrville · elev 1,617 ft
- KHDO — South Texas Regional At Hondo
Hondo · elev 930 ft
- 11T — Rocking L
Sonora · elev 2,339 ft
- KJCT — Kimble County
Junction · elev 1,754 ft
- 8T8 — San Geronimo Airpark
San Antonio · elev 1,040 ft
Frequently asked questions
How high does density altitude get at 49R in summer?
On a typical August afternoon — around 95 °F at the nearest NOAA normals station — density altitude at Real County reaches roughly 4,259 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 49R on an average day?
It swings with the seasons: from roughly 1,357 ft at the coldest month's average temperature to about 3,544 ft at the warmest month's — all from a constant field elevation of 1,640 ft. The month-by-month table above carries the full year.
What is the field elevation of Real County?
1,640 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 49R (FAA), in Leakey, Texas.