Big Creek, Idaho · field elev 5,743 ft
Density Altitude at Big Creek (U60)
Big Creek is a genuine high-and-hot field: from 5,743 ft of elevation, a typical July afternoon (79 °F) pushes density altitude to about 8,314 ft — the airplane performs like it is 2,571 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 | 21.1 | 4,590 ft | 35.0 | 5,529 ft ▲ |
| February | 24.0 | 4,788 ft | 40.8 | 5,912 ft ▲ |
| March | 31.5 | 5,296 ft | 45.7 | 6,231 ft ▲ |
| April | 35.1 | 5,536 ft | 49.8 | 6,495 ft ▲ |
| May | 43.3 | 6,075 ft | 59.3 | 7,096 ft ▲ |
| June | 51.1 | 6,578 ft | 68.1 | 7,642 ft ▲ |
| July | 58.0 | 7,015 ft | 79.2 | 8,314 ft ⚠ |
| August | 56.9 | 6,946 ft | 78.9 | 8,296 ft ⚠ |
| September | 49.4 | 6,469 ft | 69.2 | 7,709 ft ▲ |
| October | 39.4 | 5,820 ft | 56.0 | 6,889 ft ▲ |
| November | 28.7 | 5,108 ft | 41.2 | 5,938 ft ▲ |
| December | 21.6 | 4,624 ft | 34.1 | 5,470 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 U60
DENSITY ALTITUDE high DA
Field elevation 5,743 ft — the air behaves like 8,302 ft.
- PRESSURE ALT
- 5,745 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
- 3U2 — Johnson Creek
Yellow Pine · elev 4,960 ft
- U79 — Chamberlain Usfs
Chamberlain Guard Station · elev 5,765 ft
- I08 — Cabin Creek Usfs
Big Creek Ranger Station · elev 4,289 ft
- C48 — Wilson Bar Usfs
Dixie · elev 2,275 ft
- 3U1 — Warren /Usfs/
Warren · elev 5,902 ft
- U81 — Cold Meadows Usfs
Cold Meadows Guard Station · elev 7,030 ft
- 24K — Krassel Usfs
Mc Call · elev 3,982 ft
- I92 — Reed Ranch
Yellow Pine · elev 4,157 ft
Frequently asked questions
How high does density altitude get at U60 in summer?
On a typical July afternoon — around 79 °F at the nearest NOAA normals station — density altitude at Big Creek reaches roughly 8,314 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 U60 on an average day?
It swings with the seasons: from roughly 4,590 ft at the coldest month's average temperature to about 7,015 ft at the warmest month's — all from a constant field elevation of 5,743 ft. The month-by-month table above carries the full year.
What is the field elevation of Big Creek?
5,743 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is U60 (FAA), in Big Creek, Idaho.