Chenega, Alaska · field elev 69 ft
Density Altitude at Chenega Bay (PFCB)
Chenega Bay sits at 69 ft, and even a typical July afternoon (63 °F) only lifts density altitude to about 333 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 | 29.9 | −1,881 ft | 34.1 | −1,586 ft |
| February | 30.5 | −1,839 ft | 34.7 | −1,544 ft |
| March | 31.2 | −1,789 ft | 36.0 | −1,453 ft |
| April | 37.1 | −1,377 ft | 42.5 | −1,004 ft |
| May | 44.5 | −868 ft | 51.7 | −381 ft |
| June | 51.8 | −375 ft | 59.2 | 117 ft |
| July | 56.1 | −88 ft | 62.5 | 333 ft |
| August | 55.2 | −148 ft | 61.1 | 241 ft |
| September | 48.7 | −583 ft | 53.9 | −234 ft |
| October | 40.7 | −1,128 ft | 45.3 | −813 ft |
| November | 34.0 | −1,593 ft | 38.0 | −1,314 ft |
| December | 31.5 | −1,768 ft | 35.6 | −1,481 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 PFCB
DENSITY ALTITUDE
Field elevation 69 ft — the air behaves like 365 ft.
- PRESSURE ALT
- 70 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
- PAWD — Seward
Seward · elev 28 ft
- 9Z9 — Lawing
Lawing · elev 484 ft
- PAWR — Whittier
Whittier · elev 39 ft
- JLA — Quartz Creek
Cooper Landing · elev 466 ft
- PAKA — Tatitlek
Tatitlek · elev 62 ft
- PAMD — Middleton Island
Middleton Island · elev 100 ft
- AQY — Girdwood
Girdwood · elev 164 ft
- 5HO — Hope
Hope · elev 194 ft
Frequently asked questions
How high does density altitude get at PFCB in summer?
On a typical July afternoon — around 63 °F at the nearest NOAA normals station — density altitude at Chenega Bay reaches roughly 333 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 PFCB on an average day?
It swings with the seasons: from roughly −1,881 ft at the coldest month's average temperature to about −88 ft at the warmest month's — all from a constant field elevation of 69 ft. The month-by-month table above carries the full year.
What is the field elevation of Chenega Bay?
69 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is PFCB (ICAO) / C05 (FAA), in Chenega, Alaska.