Coldfoot, Alaska · field elev 1,049 ft
Density Altitude at Coldfoot (PACX)
Coldfoot sits at 1,049 ft, and even a typical June afternoon (70 °F) only lifts density altitude to about 2,021 ft — heat still trims performance, but the field rarely turns high-and-hot.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | −9.9 | −3,594 ft | −0.5 | −2,872 ft |
| February | −4.8 | −3,200 ft | 5.8 | −2,398 ft |
| March | 4.0 | −2,532 ft | 18.6 | −1,459 ft |
| April | 24.1 | −1,065 ft | 37.6 | −121 ft |
| May | 42.7 | 228 ft | 56.0 | 1,116 ft |
| June | 56.6 | 1,156 ft | 70.0 | 2,021 ft |
| July | 57.5 | 1,215 ft | 69.8 | 2,009 ft |
| August | 50.6 | 759 ft | 62.0 | 1,508 ft |
| September | 38.6 | −52 ft | 48.7 | 632 ft |
| October | 19.0 | −1,430 ft | 27.6 | −817 ft |
| November | −1.6 | −2,955 ft | 6.9 | −2,316 ft |
| December | −6.0 | −3,292 ft | 3.4 | −2,577 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 PACX
DENSITY ALTITUDE
Field elevation 1,049 ft — the air behaves like 2,021 ft.
- PRESSURE ALT
- 1,050 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 Alaska fields
- WSM — Wiseman
Wiseman · elev 1,195 ft
- PAPR — Prospect Creek
Prospect Creek · elev 1,095 ft
- PABT — Bettles
Bettles · elev 647 ft
- PALR — Chandalar Lake
Chandalar Lake · elev 1,920 ft
- PAAG — Chandalar Shelf
Chandalar Camp · elev 3,222 ft
- PAKP — Anaktuvuk Pass
Anaktuvuk Pass · elev 2,106 ft
- PFAL — Allakaket
Allakaket · elev 441 ft
- PAGB — Galbraith Lake
Galbraith Lake · elev 2,663 ft
Frequently asked questions
How high does density altitude get at PACX in summer?
On a typical June afternoon — around 70 °F at the nearest NOAA normals station — density altitude at Coldfoot reaches roughly 2,021 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 PACX on an average day?
It swings with the seasons: from roughly −3,594 ft at the coldest month's average temperature to about 1,215 ft at the warmest month's — all from a constant field elevation of 1,049 ft. The month-by-month table above carries the full year.
What is the field elevation of Coldfoot?
1,049 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is PACX (ICAO) / CXF (FAA), in Coldfoot, Alaska.