Monahans, Texas · field elev 2,615 ft

Density Altitude at Roy Hurd Meml (E01)

From a field elevation of 2,615 ft, a typical July afternoon at Roy Hurd Meml (98 °F) raises density altitude to about 5,648 ft — solidly into the range where performance charts deserve a close read.

worst typical month: July · ≈5,648 ft station: MONAHANS · 3 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at MONAHANS (3 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 43.7 2,237 ft 59.8 3,292 ft
February 48.5 2,556 ft 65.7 3,669 ft
March 56.2 3,060 ft 73.7 4,171 ft
April 64.0 3,561 ft 82.2 4,695 ft
May 73.5 4,159 ft 89.7 5,149 ft ▲
June 82.3 4,701 ft 97.3 5,601 ft ▲
July 83.6 4,780 ft 98.1 5,648 ft ▲
August 82.3 4,701 ft 96.6 5,559 ft ▲
September 75.8 4,302 ft 90.0 5,167 ft ▲
October 65.2 3,637 ft 81.2 4,634 ft
November 52.4 2,813 ft 68.9 3,871 ft
December 43.6 2,231 ft 59.7 3,286 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 E01

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 5,642 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 5,642 ft caution

Field elevation 2,615 ft — the air behaves like 5,642 ft.

PRESSURE ALT
2,617 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 E01 in summer?

On a typical July afternoon — around 98 °F at the nearest NOAA normals station — density altitude at Roy Hurd Meml reaches roughly 5,648 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 E01 on an average day?

It swings with the seasons: from roughly 2,231 ft at the coldest month's average temperature to about 4,780 ft at the warmest month's — all from a constant field elevation of 2,615 ft. The month-by-month table above carries the full year.

What is the field elevation of Roy Hurd Meml?

2,615 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is E01 (FAA), in Monahans, Texas.