Hillsboro, Ohio · field elev 977 ft
Density Altitude at Highland County (KHOC)
Highland County sits at 977 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 2,847 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 | 29.1 | −802 ft | 38.8 | −128 ft |
| February | 32.0 | −598 ft | 42.5 | 125 ft |
| March | 40.9 | 16 ft | 52.5 | 796 ft |
| April | 52.0 | 763 ft | 64.7 | 1,594 ft |
| May | 61.8 | 1,406 ft | 73.6 | 2,161 ft |
| June | 70.0 | 1,933 ft | 81.5 | 2,655 ft |
| July | 73.2 | 2,136 ft | 84.6 | 2,847 ft |
| August | 71.8 | 2,047 ft | 83.4 | 2,773 ft |
| September | 65.5 | 1,645 ft | 78.0 | 2,437 ft |
| October | 54.3 | 915 ft | 66.7 | 1,722 ft |
| November | 42.7 | 138 ft | 53.8 | 882 ft |
| December | 33.8 | −473 ft | 43.1 | 165 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 KHOC
DENSITY ALTITUDE
Field elevation 977 ft — the air behaves like 2,871 ft.
- PRESSURE ALT
- 978 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- AIR DENSITY
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- WATER · GRAINS/LB
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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
- 2B6 — Hollister Field
Wilmington · elev 1,090 ft
- KILN — Wilmington Air Park
Wilmington · elev 1,077 ft
- KAMT — Alexander Salamon
West Union · elev 896 ft
- I23 — Fayette County
Washington Court House · elev 980 ft
- I66 — Clinton Field
Wilmington · elev 1,033 ft
- KGEO — Brown County
Georgetown · elev 958 ft
- KRZT — Ross County
Chillicothe · elev 725 ft
- KEOP — Pike County
Waverly · elev 661 ft
Frequently asked questions
How high does density altitude get at KHOC in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Highland County reaches roughly 2,847 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 KHOC on an average day?
It swings with the seasons: from roughly −802 ft at the coldest month's average temperature to about 2,136 ft at the warmest month's — all from a constant field elevation of 977 ft. The month-by-month table above carries the full year.
What is the field elevation of Highland County?
977 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KHOC (ICAO) / HOC (FAA), in Hillsboro, Ohio.