Dayton, Ohio · field elev 720 ft

Density Altitude at Moraine Air Park (I73)

Moraine Air Park sits at 720 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 2,662 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,662 ft station: DAYTON MCD · 6 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at DAYTON MCD (6 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 28.2 −1,186 ft 36.3 −620 ft
February 31.4 −961 ft 40.2 −352 ft
March 40.6 −325 ft 50.7 358 ft
April 52.9 505 ft 64.3 1,252 ft
May 63.9 1,226 ft 74.9 1,928 ft
June 73.0 1,808 ft 83.6 2,471 ft
July 76.2 2,010 ft 86.7 2,662 ft
August 74.8 1,922 ft 85.8 2,607 ft
September 67.5 1,458 ft 79.2 2,198 ft
October 54.8 631 ft 66.1 1,368 ft
November 42.6 −188 ft 52.0 445 ft
December 33.2 −836 ft 40.9 −304 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 I73

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,681 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,681 ft

Field elevation 720 ft — the air behaves like 2,681 ft.

PRESSURE ALT
721 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 I73 in summer?

On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Moraine Air Park reaches roughly 2,662 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 I73 on an average day?

It swings with the seasons: from roughly −1,186 ft at the coldest month's average temperature to about 2,010 ft at the warmest month's — all from a constant field elevation of 720 ft. The month-by-month table above carries the full year.

What is the field elevation of Moraine Air Park?

720 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is I73 (FAA), in Dayton, Ohio.