Houston, Texas · field elev 33 ft
Density Altitude at Ellington (KEFD)
Ellington sits at 33 ft, and even a typical August afternoon (94 °F) only lifts density altitude to about 2,241 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 | 55.0 | −206 ft | 63.8 | 373 ft |
| February | 58.8 | 46 ft | 67.6 | 619 ft |
| March | 64.7 | 432 ft | 73.4 | 991 ft |
| April | 70.5 | 806 ft | 79.3 | 1,364 ft |
| May | 77.6 | 1,257 ft | 85.9 | 1,775 ft |
| June | 82.9 | 1,589 ft | 91.0 | 2,089 ft |
| July | 84.8 | 1,707 ft | 92.9 | 2,205 ft |
| August | 85.1 | 1,726 ft | 93.5 | 2,241 ft |
| September | 81.1 | 1,477 ft | 89.3 | 1,985 ft |
| October | 73.0 | 966 ft | 82.1 | 1,539 ft |
| November | 63.3 | 341 ft | 72.6 | 940 ft |
| December | 56.9 | −80 ft | 65.7 | 497 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 KEFD
DENSITY ALTITUDE
Field elevation 33 ft — the air behaves like 2,272 ft.
- PRESSURE ALT
- 34 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
- T41 — La Porte Municipal
La Porte · elev 25 ft
- KHOU — William P Hobby
Houston · elev 46 ft
- KLVJ — Pearland Regional
Houston · elev 44 ft
- T79 — Skyway Manor
Pearland · elev 55 ft
- 3T2 — Wolfe Air Park
Manvel · elev 55 ft
- 6R5 — Alvin Airpark
Alvin · elev 43 ft
- KHPY — Baytown
Baytown · elev 34 ft
- KAXH — Houston/Southwest
Houston · elev 69 ft
Frequently asked questions
How high does density altitude get at KEFD in summer?
On a typical August afternoon — around 94 °F at the nearest NOAA normals station — density altitude at Ellington reaches roughly 2,241 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 KEFD on an average day?
It swings with the seasons: from roughly −206 ft at the coldest month's average temperature to about 1,726 ft at the warmest month's — all from a constant field elevation of 33 ft. The month-by-month table above carries the full year.
What is the field elevation of Ellington?
33 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KEFD (ICAO) / EFD (FAA), in Houston, Texas.