Middlefield, Ohio · field elev 1,174 ft

Density Altitude at Geauga County (7G8)

Geauga County sits at 1,174 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 2,858 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,858 ft station: HIRAM · 10 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at HIRAM (10 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 24.2 −901 ft 32.5 −318 ft
February 26.0 −774 ft 35.2 −131 ft
March 34.4 −186 ft 44.4 498 ft
April 46.8 660 ft 58.0 1,401 ft
May 57.8 1,388 ft 68.9 2,105 ft
June 66.4 1,945 ft 77.0 2,616 ft
July 70.4 2,200 ft 80.9 2,858 ft
August 68.9 2,105 ft 79.5 2,772 ft
September 62.4 1,688 ft 73.2 2,377 ft
October 50.7 920 ft 60.9 1,590 ft
November 39.6 172 ft 48.3 760 ft
December 29.9 −499 ft 37.2 7 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 7G8

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,865 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,865 ft

Field elevation 1,174 ft — the air behaves like 2,865 ft.

PRESSURE ALT
1,175 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 7G8 in summer?

On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Geauga County reaches roughly 2,858 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 7G8 on an average day?

It swings with the seasons: from roughly −901 ft at the coldest month's average temperature to about 2,200 ft at the warmest month's — all from a constant field elevation of 1,174 ft. The month-by-month table above carries the full year.

What is the field elevation of Geauga County?

1,174 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 7G8 (FAA), in Middlefield, Ohio.