Salmon Lake, Alaska · field elev 509 ft
Density Altitude at Salmon Lake (Z81)
Salmon Lake sits at 509 ft, and even a typical July afternoon (58 °F) only lifts density altitude to about 561 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 | 5.6 | −3,096 ft | 13.2 | −2,532 ft |
| February | 9.0 | −2,842 ft | 16.8 | −2,269 ft |
| March | 9.6 | −2,798 ft | 17.6 | −2,210 ft |
| April | 22.7 | −1,842 ft | 29.4 | −1,366 ft |
| May | 37.3 | −814 ft | 43.6 | −382 ft |
| June | 48.3 | −64 ft | 55.1 | 390 ft |
| July | 52.0 | 184 ft | 57.7 | 561 ft |
| August | 50.2 | 63 ft | 56.0 | 449 ft |
| September | 43.1 | −416 ft | 49.0 | −17 ft |
| October | 30.4 | −1,295 ft | 36.0 | −904 ft |
| November | 18.2 | −2,167 ft | 24.3 | −1,728 ft |
| December | 9.1 | −2,835 ft | 16.2 | −2,312 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 Z81
DENSITY ALTITUDE
Field elevation 509 ft — the air behaves like 581 ft.
- PRESSURE ALT
- 510 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
- Z47 — Engstrom Field
Basin Creek · elev 143 ft
- 94Z — Nome City Field
Nome · elev 69 ft
- PAOM — Nome
Nome · elev 41 ft
- 3Z1 — Feather River
Feather River · elev 325 ft
- 5QC — Quartz Creek / Kougarok
Quartz Creek · elev 416 ft
- K29 — Council
Council · elev 100 ft
- PATE — Teller
Teller · elev 299 ft
- PAWM — White Mountain
White Mountain · elev 267 ft
Frequently asked questions
How high does density altitude get at Z81 in summer?
On a typical July afternoon — around 58 °F at the nearest NOAA normals station — density altitude at Salmon Lake reaches roughly 561 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 Z81 on an average day?
It swings with the seasons: from roughly −3,096 ft at the coldest month's average temperature to about 184 ft at the warmest month's — all from a constant field elevation of 509 ft. The month-by-month table above carries the full year.
What is the field elevation of Salmon Lake?
509 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is Z81 (FAA), in Salmon Lake, Alaska.