Houston, Texas · field elev 166 ft
Density Altitude at Dan Jones International (T51)
Dan Jones International sits at 166 ft, and even a typical August afternoon (95 °F) only lifts density altitude to about 2,482 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 | −174 ft | 63.2 | 498 ft |
| February | 57.2 | 105 ft | 67.5 | 777 ft |
| March | 63.4 | 511 ft | 73.8 | 1,180 ft |
| April | 69.3 | 892 ft | 79.7 | 1,552 ft |
| May | 76.8 | 1,370 ft | 86.5 | 1,975 ft |
| June | 82.5 | 1,727 ft | 91.8 | 2,300 ft |
| July | 84.5 | 1,851 ft | 94.2 | 2,446 ft |
| August | 84.5 | 1,851 ft | 94.8 | 2,482 ft |
| September | 80.0 | 1,571 ft | 90.5 | 2,220 ft |
| October | 71.0 | 1,001 ft | 82.4 | 1,721 ft |
| November | 61.0 | 354 ft | 72.1 | 1,071 ft |
| December | 54.6 | −68 ft | 64.9 | 608 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 T51
DENSITY ALTITUDE
Field elevation 166 ft — the air behaves like 2,494 ft.
- PRESSURE ALT
- 167 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 T51 in summer?
On a typical August afternoon — around 95 °F at the nearest NOAA normals station — density altitude at Dan Jones International reaches roughly 2,482 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 T51 on an average day?
It swings with the seasons: from roughly −174 ft at the coldest month's average temperature to about 1,851 ft at the warmest month's — all from a constant field elevation of 166 ft. The month-by-month table above carries the full year.
What is the field elevation of Dan Jones International?
166 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is T51 (FAA), in Houston, Texas.