Wilmington, Ohio · field elev 1,077 ft

Density Altitude at Wilmington Air Park (KILN)

Wilmington Air Park sits at 1,077 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 2,938 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,938 ft station: CINCINNATI · 2 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at CINCINNATI (2 mi from the field) · standard pressure, dry air
Month Avg temp °F DA at avg temp Afternoon high °F DA on a typical afternoon
January 29.1 −676 ft 36.8 −141 ft
February 32.2 −460 ft 40.7 126 ft
March 41.2 160 ft 50.7 800 ft
April 52.7 933 ft 63.6 1,646 ft
May 62.5 1,575 ft 72.9 2,239 ft
June 70.9 2,113 ft 81.5 2,777 ft
July 73.6 2,284 ft 84.1 2,938 ft
August 72.0 2,183 ft 82.9 2,864 ft
September 65.6 1,774 ft 77.3 2,516 ft
October 54.5 1,052 ft 65.1 1,742 ft
November 42.9 276 ft 52.0 887 ft
December 34.0 −335 ft 41.3 167 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 KILN

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,932 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,932 ft

Field elevation 1,077 ft — the air behaves like 2,932 ft.

PRESSURE ALT
1,078 ft
ISA DEVIATION
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RULE-OF-THUMB DA
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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

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Frequently asked questions

How high does density altitude get at KILN in summer?

On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Wilmington Air Park reaches roughly 2,938 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 KILN on an average day?

It swings with the seasons: from roughly −676 ft at the coldest month's average temperature to about 2,284 ft at the warmest month's — all from a constant field elevation of 1,077 ft. The month-by-month table above carries the full year.

What is the field elevation of Wilmington Air Park?

1,077 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KILN (ICAO) / ILN (FAA), in Wilmington, Ohio.