La Grange, Texas · field elev 324 ft
Density Altitude at Fayette Regional Air Center (3T5)
Fayette Regional Air Center sits at 324 ft, and even a typical August afternoon (97 °F) only lifts density altitude to about 2,831 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 | 51.0 | −112 ft | 62.2 | 628 ft |
| February | 54.5 | 121 ft | 65.2 | 822 ft |
| March | 61.2 | 562 ft | 72.2 | 1,272 ft |
| April | 68.4 | 1,029 ft | 79.5 | 1,733 ft |
| May | 76.1 | 1,519 ft | 86.4 | 2,161 ft |
| June | 82.1 | 1,895 ft | 92.3 | 2,522 ft |
| July | 85.1 | 2,081 ft | 96.6 | 2,783 ft |
| August | 85.5 | 2,106 ft | 97.4 | 2,831 ft |
| September | 79.9 | 1,758 ft | 91.2 | 2,455 ft |
| October | 70.7 | 1,176 ft | 82.5 | 1,920 ft |
| November | 60.0 | 484 ft | 71.3 | 1,214 ft |
| December | 52.8 | 8 ft | 63.7 | 725 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 3T5
DENSITY ALTITUDE
Field elevation 324 ft — the air behaves like 2,807 ft.
- PRESSURE ALT
- 325 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
- 84R — Smithville Crawford Municipal
Smithville · elev 323 ft
- KGYB — Giddings-Lee County
Giddings · elev 484 ft
- 66R — Robert R Wells Jr
Columbus · elev 242 ft
- 34R — Hallettsville Municipal
Hallettsville · elev 278 ft
- T20 — Roger M Dreyer Meml
Gonzales · elev 354 ft
- 11R — Brenham Municipal
Brenham · elev 318 ft
- T85 — Yoakum Municipal
Yoakum · elev 365 ft
- KELA — Eagle Lake
Eagle Lake · elev 184 ft
Frequently asked questions
How high does density altitude get at 3T5 in summer?
On a typical August afternoon — around 97 °F at the nearest NOAA normals station — density altitude at Fayette Regional Air Center reaches roughly 2,831 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 3T5 on an average day?
It swings with the seasons: from roughly −112 ft at the coldest month's average temperature to about 2,106 ft at the warmest month's — all from a constant field elevation of 324 ft. The month-by-month table above carries the full year.
What is the field elevation of Fayette Regional Air Center?
324 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 3T5 (FAA), in La Grange, Texas.