Portage Creek, Alaska · field elev 129 ft
Density Altitude at Portage Creek (PAOC)
Portage Creek sits at 129 ft, and even a typical July afternoon (65 °F) only lifts density altitude to about 543 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 | 16.6 | −2,762 ft | 23.5 | −2,262 ft |
| February | 22.1 | −2,363 ft | 29.5 | −1,834 ft |
| March | 23.5 | −2,262 ft | 31.8 | −1,672 ft |
| April | 36.0 | −1,378 ft | 44.5 | −793 ft |
| May | 45.6 | −718 ft | 55.2 | −74 ft |
| June | 52.8 | −233 ft | 62.1 | 381 ft |
| July | 56.7 | 26 ft | 64.6 | 543 ft |
| August | 55.7 | −40 ft | 63.3 | 459 ft |
| September | 48.7 | −509 ft | 56.3 | −1 ft |
| October | 36.4 | −1,351 ft | 43.8 | −841 ft |
| November | 25.0 | −2,154 ft | 31.9 | −1,665 ft |
| December | 18.6 | −2,616 ft | 25.7 | −2,104 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 PAOC
DENSITY ALTITUDE
Field elevation 129 ft — the air behaves like 569 ft.
- PRESSURE ALT
- 130 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
- 76Z — Nakeen
Nakeen · elev 50 ft
- 5NK — Naknek
Naknek · elev 70 ft
- PFWS — South Naknek Nr 2
South Naknek · elev 162 ft
- PFCL — Clarks Point
Clarks Point · elev 80 ft
- PADL — Dillingham
Dillingham · elev 82 ft
- PAAV — Ekwok
Ekwok · elev 142 ft
- PAAI — Levelock
Levelock · elev 56 ft
- Z25 — Tripod
Aleknagik · elev 225 ft
Frequently asked questions
How high does density altitude get at PAOC in summer?
On a typical July afternoon — around 65 °F at the nearest NOAA normals station — density altitude at Portage Creek reaches roughly 543 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 PAOC on an average day?
It swings with the seasons: from roughly −2,762 ft at the coldest month's average temperature to about 26 ft at the warmest month's — all from a constant field elevation of 129 ft. The month-by-month table above carries the full year.
What is the field elevation of Portage Creek?
129 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is PAOC (ICAO) / A14 (FAA), in Portage Creek, Alaska.