Indianapolis, Indiana · field elev 898 ft
Density Altitude at Hendricks County-Gordon Graham Field (2R2)
Hendricks County-Gordon Graham Field sits at 898 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 2,787 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 | 28.8 | −921 ft | 36.4 | −392 ft |
| February | 32.5 | −662 ft | 41.0 | −76 ft |
| March | 42.6 | 33 ft | 52.1 | 672 ft |
| April | 53.6 | 771 ft | 64.0 | 1,451 ft |
| May | 63.8 | 1,438 ft | 73.8 | 2,077 ft |
| June | 72.5 | 1,995 ft | 82.1 | 2,596 ft |
| July | 75.9 | 2,209 ft | 85.2 | 2,787 ft |
| August | 74.4 | 2,115 ft | 84.0 | 2,713 ft |
| September | 67.6 | 1,683 ft | 78.1 | 2,347 ft |
| October | 55.5 | 897 ft | 65.6 | 1,554 ft |
| November | 43.4 | 88 ft | 52.0 | 665 ft |
| December | 33.5 | −593 ft | 40.8 | −89 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 2R2
DENSITY ALTITUDE
Field elevation 898 ft — the air behaves like 2,775 ft.
- PRESSURE ALT
- 899 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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Frequently asked questions
How high does density altitude get at 2R2 in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Hendricks County-Gordon Graham Field reaches roughly 2,787 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 2R2 on an average day?
It swings with the seasons: from roughly −921 ft at the coldest month's average temperature to about 2,209 ft at the warmest month's — all from a constant field elevation of 898 ft. The month-by-month table above carries the full year.
What is the field elevation of Hendricks County-Gordon Graham Field?
898 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 2R2 (FAA), in Indianapolis, Indiana.