Justin, Texas · field elev 804 ft
Density Altitude at Propwash (16X)
Propwash sits at 804 ft, and even a typical July afternoon (97 °F) only lifts density altitude to about 3,383 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 | 46.7 | 194 ft | 57.4 | 906 ft |
| February | 50.6 | 456 ft | 61.6 | 1,180 ft |
| March | 58.4 | 971 ft | 69.2 | 1,670 ft |
| April | 65.8 | 1,452 ft | 76.5 | 2,132 ft |
| May | 74.2 | 1,987 ft | 84.1 | 2,605 ft |
| June | 82.7 | 2,518 ft | 92.7 | 3,130 ft |
| July | 86.7 | 2,765 ft | 96.9 | 3,383 ft |
| August | 86.5 | 2,752 ft | 96.9 | 3,383 ft |
| September | 78.4 | 2,251 ft | 89.2 | 2,918 ft |
| October | 67.7 | 1,574 ft | 78.9 | 2,282 ft |
| November | 56.6 | 853 ft | 67.4 | 1,554 ft |
| December | 48.2 | 295 ft | 58.5 | 978 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 16X
DENSITY ALTITUDE
Field elevation 804 ft — the air behaves like 3,389 ft.
- PRESSURE ALT
- 805 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
- 70T — Fairview
Rhome · elev 915 ft
- 3T6 — Clark
Justin · elev 705 ft
- KAFW — Perot Field/Fort Worth Alliance
Fort Worth · elev 723 ft
- 52F — Aero Valley
Roanoke · elev 643 ft
- 58T — Heritage Creek Airstrip
Decatur · elev 883 ft
- T76 — Rhome Meadows
Rhome · elev 900 ft
- 74T — Hicks
Ponder · elev 725 ft
- 4T2 — Kenneth Copeland
Fort Worth · elev 693 ft
Frequently asked questions
How high does density altitude get at 16X in summer?
On a typical July afternoon — around 97 °F at the nearest NOAA normals station — density altitude at Propwash reaches roughly 3,383 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 16X on an average day?
It swings with the seasons: from roughly 194 ft at the coldest month's average temperature to about 2,765 ft at the warmest month's — all from a constant field elevation of 804 ft. The month-by-month table above carries the full year.
What is the field elevation of Propwash?
804 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 16X (FAA), in Justin, Texas.