Calhoun, Georgia · field elev 656 ft

Density Altitude at Tom B David Field (KCZL)

Tom B David Field sits at 656 ft, and even a typical July afternoon (91 °F) only lifts density altitude to about 2,859 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,859 ft station: ROME R B RUSSELL AP · 15 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at ROME R B RUSSELL AP (15 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 42.3 −288 ft 52.9 426 ft
February 46.3 −17 ft 57.7 743 ft
March 53.4 459 ft 65.6 1,257 ft
April 61.4 985 ft 74.4 1,818 ft
May 69.5 1,507 ft 81.9 2,288 ft
June 76.9 1,976 ft 88.2 2,676 ft
July 80.2 2,182 ft 91.2 2,859 ft
August 79.5 2,139 ft 90.5 2,817 ft
September 73.8 1,780 ft 85.7 2,523 ft
October 62.3 1,043 ft 75.0 1,856 ft
November 51.4 326 ft 63.7 1,134 ft
December 44.7 −125 ft 55.1 571 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 KCZL

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,847 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,847 ft

Field elevation 656 ft — the air behaves like 2,847 ft.

PRESSURE ALT
657 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 KCZL in summer?

On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Tom B David Field reaches roughly 2,859 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 KCZL on an average day?

It swings with the seasons: from roughly −288 ft at the coldest month's average temperature to about 2,182 ft at the warmest month's — all from a constant field elevation of 656 ft. The month-by-month table above carries the full year.

What is the field elevation of Tom B David Field?

656 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KCZL (ICAO) / CZL (FAA), in Calhoun, Georgia.