Georgetown, Texas · field elev 790 ft
Density Altitude at Georgetown Exec (KGTU)
Georgetown Exec sits at 790 ft, and even a typical August afternoon (97 °F) only lifts density altitude to about 3,360 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 | 48.3 | 284 ft | 60.3 | 1,078 ft |
| February | 52.3 | 551 ft | 64.6 | 1,357 ft |
| March | 59.4 | 1,019 ft | 71.5 | 1,799 ft |
| April | 66.4 | 1,473 ft | 78.6 | 2,246 ft |
| May | 74.4 | 1,983 ft | 85.4 | 2,668 ft |
| June | 80.7 | 2,377 ft | 92.0 | 3,071 ft |
| July | 84.1 | 2,588 ft | 95.9 | 3,306 ft |
| August | 84.4 | 2,606 ft | 96.8 | 3,360 ft |
| September | 78.3 | 2,227 ft | 90.1 | 2,955 ft |
| October | 69.0 | 1,640 ft | 81.3 | 2,414 ft |
| November | 58.1 | 934 ft | 69.8 | 1,691 ft |
| December | 49.9 | 391 ft | 61.7 | 1,169 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 KGTU
DENSITY ALTITUDE
Field elevation 790 ft — the air behaves like 3,372 ft.
- PRESSURE ALT
- 791 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
- T74 — Taylor Municipal
Taylor · elev 600 ft
- 2TX — Salado
Salado · elev 689 ft
- KEDC — Austin Exec
Austin · elev 620 ft
- KRYW — Lago Vista Tx/Rusty Allen
Lago Vista · elev 1,230 ft
- KILE — Skylark Field
Killeen · elev 848 ft
- KGRK — Robert Gray Aaf
Fort Hood (Killeen) · elev 1,015 ft
- 3R9 — Lakeway Airpark
Lakeway · elev 909 ft
- 88R — Spicewood
Spicewood · elev 830 ft
Frequently asked questions
How high does density altitude get at KGTU in summer?
On a typical August afternoon — around 97 °F at the nearest NOAA normals station — density altitude at Georgetown Exec reaches roughly 3,360 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 KGTU on an average day?
It swings with the seasons: from roughly 284 ft at the coldest month's average temperature to about 2,606 ft at the warmest month's — all from a constant field elevation of 790 ft. The month-by-month table above carries the full year.
What is the field elevation of Georgetown Exec?
790 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KGTU (ICAO) / GTU (FAA), in Georgetown, Texas.