Lafayette, Louisiana · field elev 41 ft
Density Altitude at Lafayette Regional/Paul Fournet Field (KLFT)
Lafayette Regional/Paul Fournet Field sits at 41 ft, and even a typical August afternoon (92 °F) only lifts density altitude to about 2,178 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 | 52.8 | −342 ft | 62.2 | 279 ft |
| February | 56.8 | −76 ft | 66.1 | 532 ft |
| March | 62.9 | 324 ft | 72.6 | 950 ft |
| April | 69.2 | 732 ft | 79.0 | 1,355 ft |
| May | 76.5 | 1,197 ft | 85.9 | 1,785 ft |
| June | 81.6 | 1,518 ft | 90.2 | 2,050 ft |
| July | 83.3 | 1,624 ft | 91.5 | 2,129 ft |
| August | 83.5 | 1,636 ft | 92.3 | 2,178 ft |
| September | 79.7 | 1,399 ft | 89.0 | 1,976 ft |
| October | 70.7 | 828 ft | 81.3 | 1,499 ft |
| November | 60.8 | 187 ft | 71.5 | 880 ft |
| December | 54.9 | −202 ft | 64.4 | 422 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 KLFT
DENSITY ALTITUDE
Field elevation 41 ft — the air behaves like 2,160 ft.
- PRESSURE ALT
- 42 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
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Eunice · elev 42 ft
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New Roads · elev 39 ft
Frequently asked questions
How high does density altitude get at KLFT in summer?
On a typical August afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Lafayette Regional/Paul Fournet Field reaches roughly 2,178 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 KLFT on an average day?
It swings with the seasons: from roughly −342 ft at the coldest month's average temperature to about 1,636 ft at the warmest month's — all from a constant field elevation of 41 ft. The month-by-month table above carries the full year.
What is the field elevation of Lafayette Regional/Paul Fournet Field?
41 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KLFT (ICAO) / LFT (FAA), in Lafayette, Louisiana.