Port Lions, Alaska · field elev 42 ft
Density Altitude at Port Lions (PORI)
Port Lions sits at 42 ft, and even a typical August afternoon (61 °F) only lifts density altitude to about 169 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 | 30.2 | −1,894 ft | 34.5 | −1,592 ft |
| February | 31.0 | −1,837 ft | 35.4 | −1,529 ft |
| March | 31.6 | −1,795 ft | 36.9 | −1,424 ft |
| April | 37.2 | −1,404 ft | 42.5 | −1,038 ft |
| May | 43.9 | −942 ft | 50.2 | −515 ft |
| June | 49.5 | −563 ft | 55.4 | −168 ft |
| July | 53.8 | −274 ft | 59.6 | 110 ft |
| August | 54.4 | −234 ft | 60.5 | 169 ft |
| September | 48.7 | −616 ft | 54.6 | −221 ft |
| October | 40.5 | −1,175 ft | 45.8 | −813 ft |
| November | 34.5 | −1,592 ft | 38.9 | −1,286 ft |
| December | 30.9 | −1,844 ft | 35.6 | −1,515 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 PORI
DENSITY ALTITUDE
Field elevation 42 ft — the air behaves like 201 ft.
- PRESSURE ALT
- 43 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
- PAAE — Ouzinkie
Ouzinkie · elev 100 ft
- PADQ — Kodiak
Kodiak · elev 79 ft
- PAKD — Kodiak Municipal
Kodiak · elev 139 ft
- PALB — Larsen Bay
Larsen Bay · elev 87 ft
- 6R7 — Old Harbor
Old Harbor · elev 55 ft
- PAKY — Karluk
Karluk · elev 142 ft
- PAKH — Akhiok
Akhiok · elev 44 ft
- PAAW — Nanwalek
Nanwalek · elev 27 ft
Frequently asked questions
How high does density altitude get at PORI in summer?
On a typical August afternoon — around 61 °F at the nearest NOAA normals station — density altitude at Port Lions reaches roughly 169 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 PORI on an average day?
It swings with the seasons: from roughly −1,894 ft at the coldest month's average temperature to about −234 ft at the warmest month's — all from a constant field elevation of 42 ft. The month-by-month table above carries the full year.
What is the field elevation of Port Lions?
42 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is PORI (ICAO) / ORI (FAA), in Port Lions, Alaska.