Hamilton, Ohio · field elev 632 ft
Density Altitude at Butler County Regional/Hogan Field (KHAO)
Butler County Regional/Hogan Field sits at 632 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 2,561 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 | 30.7 | −1,120 ft | 39.9 | −482 ft |
| February | 33.6 | −918 ft | 43.7 | −223 ft |
| March | 42.8 | −284 ft | 53.9 | 462 ft |
| April | 54.1 | 475 ft | 66.6 | 1,292 ft |
| May | 63.6 | 1,098 ft | 75.4 | 1,852 ft |
| June | 71.9 | 1,631 ft | 83.2 | 2,339 ft |
| July | 75.5 | 1,858 ft | 86.8 | 2,561 ft |
| August | 74.1 | 1,770 ft | 85.9 | 2,506 ft |
| September | 66.7 | 1,298 ft | 79.6 | 2,116 ft |
| October | 54.8 | 522 ft | 67.7 | 1,362 ft |
| November | 43.2 | −257 ft | 54.7 | 515 ft |
| December | 34.6 | −848 ft | 43.6 | −229 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 KHAO
DENSITY ALTITUDE
Field elevation 632 ft — the air behaves like 2,574 ft.
- PRESSURE ALT
- 633 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 Ohio fields
- KMWO — Middletown Regional/Hook Field
Middletown · elev 651 ft
- I67 — Cincinnati West
Harrison · elev 584 ft
- I68 — Warren County/John Lane Field
Lebanon · elev 898 ft
- KOXD — Miami University
Oxford · elev 1,041 ft
- KLUK — Cincinnati Municipal/Lunken Field
Cincinnati · elev 482 ft
- KMGY — Dayton/Wright Brothers
Dayton · elev 957 ft
- 40I — Red Stewart Airfield
Waynesville · elev 955 ft
- I69 — Clermont County
Batavia · elev 844 ft
Frequently asked questions
How high does density altitude get at KHAO in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Butler County Regional/Hogan Field reaches roughly 2,561 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 KHAO on an average day?
It swings with the seasons: from roughly −1,120 ft at the coldest month's average temperature to about 1,858 ft at the warmest month's — all from a constant field elevation of 632 ft. The month-by-month table above carries the full year.
What is the field elevation of Butler County Regional/Hogan Field?
632 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KHAO (ICAO) / HAO (FAA), in Hamilton, Ohio.