Lafayette, Indiana · field elev 606 ft
Density Altitude at Purdue University (KLAF)
Purdue University sits at 606 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 2,345 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 | 25.8 | −1,499 ft | 33.4 | −964 ft |
| February | 29.7 | −1,223 ft | 38.0 | −645 ft |
| March | 40.0 | −507 ft | 49.5 | 137 ft |
| April | 51.1 | 244 ft | 61.9 | 956 ft |
| May | 61.6 | 936 ft | 72.5 | 1,637 ft |
| June | 70.7 | 1,522 ft | 81.2 | 2,183 ft |
| July | 73.6 | 1,706 ft | 83.8 | 2,345 ft |
| August | 72.2 | 1,618 ft | 82.7 | 2,277 ft |
| September | 65.5 | 1,189 ft | 77.2 | 1,933 ft |
| October | 53.7 | 417 ft | 64.5 | 1,124 ft |
| November | 41.3 | −418 ft | 50.0 | 170 ft |
| December | 31.0 | −1,132 ft | 38.2 | −631 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 KLAF
DENSITY ALTITUDE
Field elevation 606 ft — the air behaves like 2,357 ft.
- PRESSURE ALT
- 607 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 Indiana fields
- 1I9 — Delphi Municipal
Delphi · elev 671 ft
- KFKR — Frankfort Clinton County Regional
Frankfort · elev 861 ft
- 5I2 — Flora Municipal
Flora · elev 710 ft
- KMCX — White County
Monticello · elev 679 ft
- KCFJ — Crawfordsville Regional
Crawfordsville · elev 800 ft
- 50I — Kentland Municipal
Kentland · elev 699 ft
- KGGP — Logansport/Cass County
Logansport · elev 738 ft
- 5I6 — Galveston
Galveston · elev 786 ft
Frequently asked questions
How high does density altitude get at KLAF in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Purdue University reaches roughly 2,345 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 KLAF on an average day?
It swings with the seasons: from roughly −1,499 ft at the coldest month's average temperature to about 1,706 ft at the warmest month's — all from a constant field elevation of 606 ft. The month-by-month table above carries the full year.
What is the field elevation of Purdue University?
606 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KLAF (ICAO) / LAF (FAA), in Lafayette, Indiana.