Houston, Texas · field elev 96 ft
Density Altitude at George Bush Intcntl/Houston (KIAH)
George Bush Intcntl/Houston sits at 96 ft, and even a typical August afternoon (95 °F) only lifts density altitude to about 2,403 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 | 53.8 | −208 ft | 63.8 | 451 ft |
| February | 57.7 | 51 ft | 67.8 | 710 ft |
| March | 63.8 | 451 ft | 74.0 | 1,106 ft |
| April | 70.0 | 851 ft | 80.1 | 1,491 ft |
| May | 77.4 | 1,322 ft | 86.9 | 1,914 ft |
| June | 83.0 | 1,672 ft | 92.3 | 2,245 ft |
| July | 85.1 | 1,803 ft | 94.5 | 2,379 ft |
| August | 85.2 | 1,809 ft | 94.9 | 2,403 ft |
| September | 80.5 | 1,516 ft | 90.4 | 2,129 ft |
| October | 71.8 | 966 ft | 82.8 | 1,660 ft |
| November | 62.0 | 333 ft | 72.6 | 1,017 ft |
| December | 55.4 | −101 ft | 65.3 | 548 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 KIAH
DENSITY ALTITUDE
Field elevation 96 ft — the air behaves like 2,409 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
Nearby Texas fields
- KDWH — David Wayne Hooks Meml
Houston · elev 152 ft
- T51 — Dan Jones International
Houston · elev 166 ft
- KIWS — West Houston
Houston · elev 111 ft
- KHOU — William P Hobby
Houston · elev 46 ft
- KCXO — Conroe/North Houston Regional
Houston · elev 245 ft
- KHPY — Baytown
Baytown · elev 34 ft
- T41 — La Porte Municipal
La Porte · elev 25 ft
- KEFD — Ellington
Houston · elev 33 ft
Frequently asked questions
How high does density altitude get at KIAH in summer?
On a typical August afternoon — around 95 °F at the nearest NOAA normals station — density altitude at George Bush Intcntl/Houston reaches roughly 2,403 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 KIAH on an average day?
It swings with the seasons: from roughly −208 ft at the coldest month's average temperature to about 1,809 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 George Bush Intcntl/Houston?
96 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KIAH (ICAO) / IAH (FAA), in Houston, Texas.