Indianapolis, Indiana · field elev 822 ft
Density Altitude at Indy South Greenwood (KHFY)
Indy South Greenwood sits at 822 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 2,602 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 | 26.6 | −1,172 ft | 34.2 | −639 ft |
| February | 30.4 | −904 ft | 39.1 | −300 ft |
| March | 40.1 | −232 ft | 49.7 | 418 ft |
| April | 51.6 | 544 ft | 61.9 | 1,222 ft |
| May | 62.3 | 1,248 ft | 72.3 | 1,889 ft |
| June | 71.2 | 1,819 ft | 80.9 | 2,429 ft |
| July | 74.0 | 1,996 ft | 83.7 | 2,602 ft |
| August | 72.6 | 1,908 ft | 82.6 | 2,534 ft |
| September | 65.9 | 1,480 ft | 76.8 | 2,173 ft |
| October | 54.1 | 710 ft | 64.6 | 1,396 ft |
| November | 41.7 | −123 ft | 50.6 | 478 ft |
| December | 31.7 | −813 ft | 39.2 | −294 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 KHFY
DENSITY ALTITUDE
Field elevation 822 ft — the air behaves like 2,621 ft.
- PRESSURE ALT
- 823 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
- 7L8 — Post-Air
Indianapolis · elev 861 ft
- KIND — Indianapolis International
Indianapolis · elev 796 ft
- 3FK — Franklin Flying Field
Franklin · elev 740 ft
- KGEZ — Shelbyville Municipal
Shelbyville · elev 803 ft
- KEYE — Eagle Creek Airpark
Indianapolis · elev 823 ft
- KMQJ — Indianapolis Regional
Indianapolis · elev 862 ft
- KUMP — Indianapolis Metro
Indianapolis · elev 811 ft
- KGFD — Pope Field
Greenfield · elev 895 ft
Frequently asked questions
How high does density altitude get at KHFY in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Indy South Greenwood reaches roughly 2,602 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 KHFY on an average day?
It swings with the seasons: from roughly −1,172 ft at the coldest month's average temperature to about 1,996 ft at the warmest month's — all from a constant field elevation of 822 ft. The month-by-month table above carries the full year.
What is the field elevation of Indy South Greenwood?
822 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KHFY (ICAO) / HFY (FAA), in Indianapolis, Indiana.