Williams, Arizona · field elev 6,691 ft
Density Altitude at H A Clark Meml Field (KCMR)
H A Clark Meml Field is a genuine high-and-hot field: from 6,691 ft of elevation, a typical July afternoon (84 °F) pushes density altitude to about 9,751 ft — the airplane performs like it is 3,060 ft above the field before the wheels roll.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 34.3 | 6,655 ft | 47.2 | 7,493 ft ▲ |
| February | 35.9 | 6,760 ft | 49.2 | 7,620 ft ▲ |
| March | 41.2 | 7,106 ft | 55.6 | 8,024 ft ⚠ |
| April | 46.8 | 7,467 ft | 62.3 | 8,441 ft ⚠ |
| May | 55.1 | 7,993 ft | 71.2 | 8,984 ft ⚠ |
| June | 64.9 | 8,600 ft | 81.8 | 9,616 ft ⚠ |
| July | 68.8 | 8,838 ft | 84.1 | 9,751 ft ⚠ |
| August | 66.9 | 8,723 ft | 81.5 | 9,598 ft ⚠ |
| September | 61.5 | 8,391 ft | 76.4 | 9,296 ft ⚠ |
| October | 51.3 | 7,754 ft | 66.7 | 8,711 ft ⚠ |
| November | 41.7 | 7,139 ft | 55.7 | 8,031 ft ⚠ |
| December | 33.9 | 6,629 ft | 47.0 | 7,480 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 KCMR
DENSITY ALTITUDE high DA
Field elevation 6,691 ft — the air behaves like 9,745 ft.
- PRESSURE ALT
- 6,693 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 Arizona fields
- 40G — Valle
Grand Canyon · elev 5,999 ft
- KFLG — Flagstaff Pulliam
Flagstaff · elev 7,015 ft
- KSEZ — Sedona
Sedona · elev 4,831 ft
- P23 — Seligman
Seligman · elev 5,237 ft
- P52 — Cottonwood
Cottonwood · elev 3,560 ft
- KGCN — Grand Canyon Ntl Park
Grand Canyon · elev 6,609 ft
- KPRC — Prescott Regional/Ernest A Love Field
Prescott · elev 5,045 ft
- L37 — Grand Canyon Caverns
Peach Springs · elev 5,397 ft
Frequently asked questions
How high does density altitude get at KCMR in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at H A Clark Meml Field reaches roughly 9,751 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 KCMR on an average day?
It swings with the seasons: from roughly 6,629 ft at the coldest month's average temperature to about 8,838 ft at the warmest month's — all from a constant field elevation of 6,691 ft. The month-by-month table above carries the full year.
What is the field elevation of H A Clark Meml Field?
6,691 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KCMR (ICAO) / CMR (FAA), in Williams, Arizona.