Landmark, Idaho · field elev 6,662 ft
Density Altitude at Landmark Usfs (0U0)
Landmark Usfs is a genuine high-and-hot field: from 6,662 ft of elevation, a typical July afternoon (82 °F) pushes density altitude to about 9,575 ft — the airplane performs like it is 2,913 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 | 21.5 | 5,761 ft | 35.4 | 6,692 ft ▲ |
| February | 23.9 | 5,924 ft | 36.0 | 6,731 ft ▲ |
| March | 29.5 | 6,300 ft | 42.4 | 7,149 ft ▲ |
| April | 35.8 | 6,718 ft | 49.3 | 7,591 ft ▲ |
| May | 45.7 | 7,361 ft | 61.4 | 8,350 ft ⚠ |
| June | 52.3 | 7,781 ft | 69.6 | 8,852 ft ⚠ |
| July | 60.6 | 8,300 ft | 81.7 | 9,575 ft ⚠ |
| August | 59.9 | 8,257 ft | 81.2 | 9,545 ft ⚠ |
| September | 52.3 | 7,781 ft | 72.9 | 9,051 ft ⚠ |
| October | 41.3 | 7,077 ft | 57.0 | 8,076 ft ⚠ |
| November | 28.4 | 6,227 ft | 40.2 | 7,006 ft ▲ |
| December | 20.2 | 5,672 ft | 31.4 | 6,427 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 0U0
DENSITY ALTITUDE high DA
Field elevation 6,662 ft — the air behaves like 9,593 ft.
- PRESSURE ALT
- 6,664 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
- U63 — Bruce Meadows
Stanley · elev 6,370 ft
- I92 — Reed Ranch
Yellow Pine · elev 4,157 ft
- S81 — Indian Creek Usfs
Indian Creek · elev 4,718 ft
- 24K — Krassel Usfs
Mc Call · elev 3,982 ft
- U70 — Cascade
Cascade · elev 4,748 ft
- 2U8 — Thomas Creek
Stanley · elev 4,415 ft
- U84 — Donald D Coski Meml
Donnelly · elev 4,860 ft
Frequently asked questions
How high does density altitude get at 0U0 in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Landmark Usfs reaches roughly 9,575 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 0U0 on an average day?
It swings with the seasons: from roughly 5,672 ft at the coldest month's average temperature to about 8,300 ft at the warmest month's — all from a constant field elevation of 6,662 ft. The month-by-month table above carries the full year.
What is the field elevation of Landmark Usfs?
6,662 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 0U0 (FAA), in Landmark, Idaho.