Paris, Tennessee · field elev 580 ft

Density Altitude at Henry County (KPHT)

Henry County sits at 580 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 2,584 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,584 ft station: PARIS 2 SE · 6 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at PARIS 2 SE (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 36.2 −802 ft 45.9 −138 ft
February 40.1 −533 ft 50.7 185 ft
March 48.4 31 ft 60.0 800 ft
April 58.1 675 ft 70.4 1,471 ft
May 66.8 1,241 ft 77.9 1,946 ft
June 74.6 1,738 ft 85.1 2,393 ft
July 78.0 1,952 ft 88.2 2,584 ft
August 77.2 1,902 ft 88.1 2,578 ft
September 70.6 1,484 ft 82.3 2,220 ft
October 59.2 747 ft 71.7 1,554 ft
November 47.7 −16 ft 59.0 734 ft
December 39.5 −574 ft 49.1 78 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 KPHT

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,572 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,572 ft

Field elevation 580 ft — the air behaves like 2,572 ft.

PRESSURE ALT
581 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 KPHT in summer?

On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Henry County reaches roughly 2,584 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 KPHT on an average day?

It swings with the seasons: from roughly −802 ft at the coldest month's average temperature to about 1,952 ft at the warmest month's — all from a constant field elevation of 580 ft. The month-by-month table above carries the full year.

What is the field elevation of Henry County?

580 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KPHT (ICAO) / PHT (FAA), in Paris, Tennessee.