Naknek, Alaska · field elev 70 ft
Density Altitude at Naknek (5NK)
Naknek sits at 70 ft, and even a typical July afternoon (65 °F) only lifts density altitude to about 471 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 | −2,836 ft | 23.5 | −2,336 ft |
| February | 22.1 | −2,437 ft | 29.5 | −1,908 ft |
| March | 23.5 | −2,336 ft | 31.8 | −1,746 ft |
| April | 36.0 | −1,452 ft | 44.5 | −867 ft |
| May | 45.6 | −792 ft | 55.2 | −147 ft |
| June | 52.8 | −306 ft | 62.1 | 308 ft |
| July | 56.7 | −47 ft | 64.6 | 471 ft |
| August | 55.7 | −113 ft | 63.3 | 386 ft |
| September | 48.7 | −582 ft | 56.3 | −74 ft |
| October | 36.4 | −1,424 ft | 43.8 | −914 ft |
| November | 25.0 | −2,228 ft | 31.9 | −1,739 ft |
| December | 18.6 | −2,690 ft | 25.7 | −2,178 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 5NK
DENSITY ALTITUDE
Field elevation 70 ft — the air behaves like 497 ft.
- PRESSURE ALT
- 71 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
- PFWS — South Naknek Nr 2
South Naknek · elev 162 ft
- 76Z — Nakeen
Nakeen · elev 50 ft
- PAKN — King Salmon
King Salmon · elev 73 ft
- PAOC — Portage Creek
Portage Creek · elev 129 ft
- PAAI — Levelock
Levelock · elev 56 ft
- PAII — Egegik
Egegik · elev 92 ft
- PAAV — Ekwok
Ekwok · elev 142 ft
- PANW — New Stuyahok
New Stuyahok · elev 371 ft
Frequently asked questions
How high does density altitude get at 5NK in summer?
On a typical July afternoon — around 65 °F at the nearest NOAA normals station — density altitude at Naknek reaches roughly 471 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 5NK on an average day?
It swings with the seasons: from roughly −2,836 ft at the coldest month's average temperature to about −47 ft at the warmest month's — all from a constant field elevation of 70 ft. The month-by-month table above carries the full year.
What is the field elevation of Naknek?
70 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 5NK (FAA), in Naknek, Alaska.