Trenton, Missouri · field elev 758 ft

Density Altitude at Trenton Municipal (KTRX)

Trenton Municipal sits at 758 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 2,843 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,843 ft station: TRENTON · 1 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at TRENTON (1 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 25.5 −1,330 ft 34.8 −677 ft
February 30.0 −1,012 ft 40.3 −298 ft
March 41.2 −236 ft 52.5 525 ft
April 52.3 512 ft 63.9 1,273 ft
May 63.6 1,253 ft 74.6 1,956 ft
June 73.6 1,893 ft 84.5 2,573 ft
July 77.8 2,157 ft 88.9 2,843 ft
August 75.5 2,013 ft 86.9 2,721 ft
September 67.1 1,479 ft 79.4 2,257 ft
October 54.7 671 ft 66.7 1,453 ft
November 41.3 −229 ft 51.7 472 ft
December 30.4 −984 ft 39.5 −353 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 KTRX

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,849 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,849 ft

Field elevation 758 ft — the air behaves like 2,849 ft.

PRESSURE ALT
759 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 KTRX in summer?

On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Trenton Municipal reaches roughly 2,843 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 KTRX on an average day?

It swings with the seasons: from roughly −1,330 ft at the coldest month's average temperature to about 2,157 ft at the warmest month's — all from a constant field elevation of 758 ft. The month-by-month table above carries the full year.

What is the field elevation of Trenton Municipal?

758 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KTRX (ICAO) / TRX (FAA), in Trenton, Missouri.