Delphi, Indiana · field elev 671 ft
Density Altitude at Delphi Municipal (1I9)
Delphi Municipal sits at 671 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 2,473 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 | 26.8 | −1,347 ft | 34.4 | −813 ft |
| February | 30.5 | −1,086 ft | 38.8 | −509 ft |
| March | 41.1 | −351 ft | 50.7 | 298 ft |
| April | 52.5 | 417 ft | 63.9 | 1,165 ft |
| May | 62.9 | 1,101 ft | 74.3 | 1,830 ft |
| June | 71.1 | 1,628 ft | 82.2 | 2,325 ft |
| July | 73.9 | 1,805 ft | 84.6 | 2,473 ft |
| August | 72.3 | 1,704 ft | 83.3 | 2,393 ft |
| September | 65.9 | 1,295 ft | 78.2 | 2,076 ft |
| October | 54.8 | 570 ft | 66.0 | 1,301 ft |
| November | 42.4 | −263 ft | 51.2 | 331 ft |
| December | 31.8 | −995 ft | 39.2 | −482 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 1I9
DENSITY ALTITUDE
Field elevation 671 ft — the air behaves like 2,498 ft.
- PRESSURE ALT
- 672 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
- 5I2 — Flora Municipal
Flora · elev 710 ft
- KMCX — White County
Monticello · elev 679 ft
- KLAF — Purdue University
Lafayette · elev 606 ft
- KFKR — Frankfort Clinton County Regional
Frankfort · elev 861 ft
- KGGP — Logansport/Cass County
Logansport · elev 738 ft
- 5I6 — Galveston
Galveston · elev 786 ft
- 8I3 — Glenndale
Kokomo · elev 850 ft
- KGUS — Grissom Arb
Peru · elev 811 ft
Frequently asked questions
How high does density altitude get at 1I9 in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Delphi Municipal reaches roughly 2,473 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 1I9 on an average day?
It swings with the seasons: from roughly −1,347 ft at the coldest month's average temperature to about 1,805 ft at the warmest month's — all from a constant field elevation of 671 ft. The month-by-month table above carries the full year.
What is the field elevation of Delphi Municipal?
671 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 1I9 (FAA), in Delphi, Indiana.