Munising, Michigan · field elev 984 ft

Density Altitude at Hanley Field (5Y7)

Hanley Field sits at 984 ft, and even a typical July afternoon (73 °F) only lifts density altitude to about 2,113 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,113 ft station: MUNISING · 4 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at MUNISING (4 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 17.4 −1,627 ft 23.4 −1,196 ft
February 18.4 −1,555 ft 25.3 −1,061 ft
March 26.2 −997 ft 33.4 −492 ft
April 36.6 −271 ft 44.6 276 ft
May 48.9 565 ft 58.6 1,206 ft
June 58.3 1,187 ft 67.6 1,788 ft
July 64.1 1,564 ft 72.7 2,113 ft
August 63.4 1,518 ft 72.0 2,069 ft
September 56.7 1,082 ft 64.6 1,596 ft
October 44.6 276 ft 51.6 745 ft
November 33.3 −499 ft 39.1 −99 ft
December 23.5 −1,189 ft 29.0 −800 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 5Y7

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,132 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,132 ft

Field elevation 984 ft — the air behaves like 2,132 ft.

PRESSURE ALT
985 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

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Frequently asked questions

How high does density altitude get at 5Y7 in summer?

On a typical July afternoon — around 73 °F at the nearest NOAA normals station — density altitude at Hanley Field reaches roughly 2,113 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 5Y7 on an average day?

It swings with the seasons: from roughly −1,627 ft at the coldest month's average temperature to about 1,564 ft at the warmest month's — all from a constant field elevation of 984 ft. The month-by-month table above carries the full year.

What is the field elevation of Hanley Field?

984 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 5Y7 (FAA), in Munising, Michigan.