South Naknek, Alaska · field elev 162 ft
Density Altitude at South Naknek Nr 2 (PFWS)
South Naknek Nr 2 sits at 162 ft, and even a typical July afternoon (65 °F) only lifts density altitude to about 584 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 | −2,720 ft | 23.5 | −2,220 ft |
| February | 22.1 | −2,321 ft | 29.5 | −1,793 ft |
| March | 23.5 | −2,220 ft | 31.8 | −1,631 ft |
| April | 36.0 | −1,337 ft | 44.5 | −752 ft |
| May | 45.6 | −677 ft | 55.2 | −33 ft |
| June | 52.8 | −193 ft | 62.1 | 421 ft |
| July | 56.7 | 67 ft | 64.6 | 584 ft |
| August | 55.7 | 0 ft | 63.3 | 500 ft |
| September | 48.7 | −468 ft | 56.3 | 40 ft |
| October | 36.4 | −1,309 ft | 43.8 | −800 ft |
| November | 25.0 | −2,113 ft | 31.9 | −1,624 ft |
| December | 18.6 | −2,574 ft | 25.7 | −2,063 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 PFWS
DENSITY ALTITUDE
Field elevation 162 ft — the air behaves like 610 ft.
- PRESSURE ALT
- 163 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
- 5NK — Naknek
Naknek · elev 70 ft
- PAKN — King Salmon
King Salmon · elev 73 ft
- 76Z — Nakeen
Nakeen · elev 50 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 PFWS in summer?
On a typical July afternoon — around 65 °F at the nearest NOAA normals station — density altitude at South Naknek Nr 2 reaches roughly 584 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 PFWS on an average day?
It swings with the seasons: from roughly −2,720 ft at the coldest month's average temperature to about 67 ft at the warmest month's — all from a constant field elevation of 162 ft. The month-by-month table above carries the full year.
What is the field elevation of South Naknek Nr 2?
162 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is PFWS (ICAO) / WSN (FAA), in South Naknek, Alaska.