Chignik Lake, Alaska · field elev 50 ft
Density Altitude at Chignik Lake (A79)
Chignik Lake sits at 50 ft, and even its warmest typical afternoon (August, 57 °F) leaves density altitude around −52 ft — below the field elevation itself. Cold, dense air is the norm here; watch for the opposite altimetry problem on cold days instead.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 30.9 | −1,834 ft | 35.2 | −1,533 ft |
| February | 31.4 | −1,799 ft | 34.9 | −1,554 ft |
| March | 30.8 | −1,841 ft | 34.7 | −1,568 ft |
| April | 35.3 | −1,526 ft | 39.5 | −1,234 ft |
| May | 40.9 | −1,138 ft | 45.5 | −823 ft |
| June | 47.2 | −708 ft | 51.9 | −391 ft |
| July | 51.4 | −425 ft | 56.1 | −112 ft |
| August | 52.5 | −351 ft | 57.0 | −52 ft |
| September | 48.7 | −607 ft | 53.4 | −291 ft |
| October | 41.2 | −1,117 ft | 45.5 | −823 ft |
| November | 36.4 | −1,449 ft | 40.1 | −1,193 ft |
| December | 32.7 | −1,708 ft | 36.5 | −1,442 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 A79
DENSITY ALTITUDE
Field elevation 50 ft — the air behaves like −52 ft.
- PRESSURE ALT
- 51 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
- KCL — Chignik Lagoon
Chignik Lagoon · elev 28 ft
- PAJC — Chignik
Chignik · elev 18 ft
- PAPE — Perryville
Perryville · elev 30 ft
- PAPH — Port Heiden
Port Heiden · elev 95 ft
- Z52 — Johnsons Landing
Bear Lake · elev 130 ft
- UGB — Ugashik Bay
Pilot Point · elev 132 ft
- PAOU — Nelson Lagoon
Nelson Lagoon · elev 14 ft
- PASD — Sand Point
Sand Point · elev 24 ft
Frequently asked questions
How high does density altitude get at A79 in summer?
On a typical August afternoon — around 57 °F at the nearest NOAA normals station — density altitude at Chignik Lake reaches roughly −52 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 A79 on an average day?
It swings with the seasons: from roughly −1,841 ft at the coldest month's average temperature to about −351 ft at the warmest month's — all from a constant field elevation of 50 ft. The month-by-month table above carries the full year.
What is the field elevation of Chignik Lake?
50 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is A79 (FAA), in Chignik Lake, Alaska.