Agua Dulce, Texas · field elev 96 ft
Density Altitude at Old Hoppe Place (67T)
Old Hoppe Place sits at 96 ft, and even a typical August afternoon (96 °F) only lifts density altitude to about 2,488 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 | 57.2 | 18 ft | 67.5 | 690 ft |
| February | 61.4 | 294 ft | 72.0 | 979 ft |
| March | 67.2 | 671 ft | 77.4 | 1,322 ft |
| April | 73.3 | 1,062 ft | 83.0 | 1,672 ft |
| May | 79.2 | 1,435 ft | 88.3 | 2,000 ft |
| June | 84.0 | 1,734 ft | 93.3 | 2,306 ft |
| July | 85.3 | 1,815 ft | 94.8 | 2,397 ft |
| August | 86.2 | 1,871 ft | 96.3 | 2,488 ft |
| September | 82.1 | 1,616 ft | 91.9 | 2,221 ft |
| October | 75.2 | 1,183 ft | 85.9 | 1,852 ft |
| November | 66.3 | 613 ft | 76.7 | 1,277 ft |
| December | 59.4 | 163 ft | 69.8 | 838 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 67T
DENSITY ALTITUDE
Field elevation 96 ft — the air behaves like 2,470 ft.
- PRESSURE ALT
- 97 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
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Frequently asked questions
How high does density altitude get at 67T in summer?
On a typical August afternoon — around 96 °F at the nearest NOAA normals station — density altitude at Old Hoppe Place reaches roughly 2,488 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 67T on an average day?
It swings with the seasons: from roughly 18 ft at the coldest month's average temperature to about 1,871 ft at the warmest month's — all from a constant field elevation of 96 ft. The month-by-month table above carries the full year.
What is the field elevation of Old Hoppe Place?
96 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 67T (FAA), in Agua Dulce, Texas.