Calhan, Colorado · field elev 6,450 ft

Density Altitude at Calhan (5V4)

Calhan is a genuine high-and-hot field: from 6,450 ft of elevation, a typical July afternoon (86 °F) pushes density altitude to about 9,577 ft — the airplane performs like it is 3,127 ft above the field before the wheels roll.

worst typical month: July · ≈9,577 ft station: RUSH 1N · 17 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at RUSH 1N (17 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 29.5 6,038 ft 43.4 6,952 ft ▲
February 31.1 6,145 ft 44.9 7,049 ft ▲
March 38.5 6,634 ft 53.1 7,572 ft ▲
April 45.3 7,075 ft 60.0 8,004 ft ⚠
May 55.3 7,711 ft 69.3 8,576 ft ⚠
June 65.6 8,350 ft 80.6 9,253 ft ⚠
July 71.1 8,685 ft 86.1 9,577 ft ⚠
August 69.1 8,563 ft 83.3 9,413 ft ⚠
September 61.4 8,091 ft 77.0 9,039 ft ⚠
October 48.8 7,299 ft 63.8 8,239 ft ⚠
November 37.1 6,542 ft 51.5 7,471 ft ▲
December 29.4 6,031 ft 42.8 6,913 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 5V4

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 9,571 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 9,571 ft high DA

Field elevation 6,450 ft — the air behaves like 9,571 ft.

PRESSURE ALT
6,452 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

Nearby Colorado fields

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Frequently asked questions

How high does density altitude get at 5V4 in summer?

On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Calhan reaches roughly 9,577 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 5V4 on an average day?

It swings with the seasons: from roughly 6,031 ft at the coldest month's average temperature to about 8,685 ft at the warmest month's — all from a constant field elevation of 6,450 ft. The month-by-month table above carries the full year.

What is the field elevation of Calhan?

6,450 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 5V4 (FAA), in Calhan, Colorado.