Agua Dulce, Texas · field elev 96 ft

Density Altitude at Old Hoppe Place (67T)

Old Hoppe Place sits at 96 ft, and even a typical August afternoon (96 °F) only lifts density altitude to about 2,488 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: August · ≈2,488 ft station: ROBSTOWN · 12 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at ROBSTOWN (12 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 57.2 18 ft 67.5 690 ft
February 61.4 294 ft 72.0 979 ft
March 67.2 671 ft 77.4 1,322 ft
April 73.3 1,062 ft 83.0 1,672 ft
May 79.2 1,435 ft 88.3 2,000 ft
June 84.0 1,734 ft 93.3 2,306 ft
July 85.3 1,815 ft 94.8 2,397 ft
August 86.2 1,871 ft 96.3 2,488 ft
September 82.1 1,616 ft 91.9 2,221 ft
October 75.2 1,183 ft 85.9 1,852 ft
November 66.3 613 ft 76.7 1,277 ft
December 59.4 163 ft 69.8 838 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 67T

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,470 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,470 ft

Field elevation 96 ft — the air behaves like 2,470 ft.

PRESSURE ALT
97 ft
ISA DEVIATION
RULE-OF-THUMB DA
AIR DENSITY INDEX
AIR DENSITY
WATER · GRAINS/LB

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 67T in summer?

On a typical August afternoon — around 96 °F at the nearest NOAA normals station — density altitude at Old Hoppe Place reaches roughly 2,488 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 67T on an average day?

It swings with the seasons: from roughly 18 ft at the coldest month's average temperature to about 1,871 ft at the warmest month's — all from a constant field elevation of 96 ft. The month-by-month table above carries the full year.

What is the field elevation of Old Hoppe Place?

96 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 67T (FAA), in Agua Dulce, Texas.