Fish Lake, Idaho · field elev 5,646 ft
Density Altitude at Fish Lake Usfs (S92)
Fish Lake Usfs is a genuine high-and-hot field: from 5,646 ft of elevation, a typical July afternoon (77 °F) pushes density altitude to about 8,040 ft — the airplane performs like it is 2,394 ft above the field before the wheels roll.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 19.0 | 4,324 ft | 32.7 | 5,256 ft ▲ |
| February | 21.1 | 4,469 ft | 35.9 | 5,469 ft ▲ |
| March | 27.5 | 4,906 ft | 41.4 | 5,832 ft ▲ |
| April | 33.5 | 5,309 ft | 46.4 | 6,157 ft ▲ |
| May | 43.1 | 5,943 ft | 57.2 | 6,846 ft ▲ |
| June | 50.6 | 6,427 ft | 65.8 | 7,382 ft ▲ |
| July | 57.6 | 6,871 ft | 76.6 | 8,040 ft ⚠ |
| August | 56.4 | 6,795 ft | 76.6 | 8,040 ft ⚠ |
| September | 48.2 | 6,273 ft | 66.6 | 7,431 ft ▲ |
| October | 37.7 | 5,588 ft | 52.2 | 6,529 ft ▲ |
| November | 26.8 | 4,859 ft | 39.0 | 5,674 ft ▲ |
| December | 18.4 | 4,282 ft | 31.1 | 5,149 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 S92
DENSITY ALTITUDE high DA
Field elevation 5,646 ft — the air behaves like 8,064 ft.
- PRESSURE ALT
- 5,648 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 Idaho fields
- 1U1 — Moose Creek /Usfs/
Moose Creek Ranger Station · elev 2,454 ft
- C64 — Cayuse Creek Usfs
Cayuse Creek · elev 3,505 ft
- 2U5 — Shearer /Usfs/
Shearer · elev 2,634 ft
- S90 — Elk City
Elk City · elev 4,097 ft
- S82 — Kooskia Municipal
Kooskia · elev 1,263 ft
- S73 — Kamiah Municipal
Kamiah · elev 1,206 ft
- 75C — Orogrande
Orogrande · elev 4,419 ft
- 0S5 — Nezperce Municipal
Nezperce · elev 3,204 ft
Frequently asked questions
How high does density altitude get at S92 in summer?
On a typical July afternoon — around 77 °F at the nearest NOAA normals station — density altitude at Fish Lake Usfs reaches roughly 8,040 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 S92 on an average day?
It swings with the seasons: from roughly 4,282 ft at the coldest month's average temperature to about 6,871 ft at the warmest month's — all from a constant field elevation of 5,646 ft. The month-by-month table above carries the full year.
What is the field elevation of Fish Lake Usfs?
5,646 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is S92 (FAA), in Fish Lake, Idaho.