Stanley, Idaho · field elev 6,403 ft
Density Altitude at Stanley (2U7)
Stanley is a genuine high-and-hot field: from 6,403 ft of elevation, a typical July afternoon (80 °F) pushes density altitude to about 9,173 ft — the airplane performs like it is 2,770 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 | 11.3 | 4,732 ft | 25.7 | 5,724 ft ▲ |
| February | 15.9 | 5,053 ft | 32.7 | 6,193 ft ▲ |
| March | 25.6 | 5,717 ft | 42.6 | 6,843 ft ▲ |
| April | 34.0 | 6,279 ft | 49.7 | 7,299 ft ▲ |
| May | 43.2 | 6,881 ft | 60.4 | 7,972 ft ▲ |
| June | 50.0 | 7,318 ft | 68.8 | 8,488 ft ⚠ |
| July | 57.1 | 7,766 ft | 80.2 | 9,173 ft ⚠ |
| August | 55.5 | 7,666 ft | 79.4 | 9,125 ft ⚠ |
| September | 47.7 | 7,171 ft | 70.3 | 8,579 ft ⚠ |
| October | 37.4 | 6,503 ft | 56.1 | 7,703 ft ▲ |
| November | 24.0 | 5,609 ft | 38.4 | 6,569 ft ▲ |
| December | 11.4 | 4,739 ft | 25.0 | 5,677 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 2U7
DENSITY ALTITUDE high DA
Field elevation 6,403 ft — the air behaves like 9,161 ft.
- PRESSURE ALT
- 6,405 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
- 0U1 — Warm Springs Creek
Lowman · elev 4,831 ft
- U87 — Smiley Creek
Smiley Creek · elev 7,206 ft
- U63 — Bruce Meadows
Stanley · elev 6,370 ft
- U45 — Graham Usfs
Atlanta · elev 5,726 ft
- U72 — Upper Loon Creek Usfs
Challis · elev 5,500 ft
- 55H — Atlanta
Atlanta · elev 5,500 ft
- 52U — Weatherby Usfs
Atlanta · elev 4,503 ft
- 2U8 — Thomas Creek
Stanley · elev 4,415 ft
Frequently asked questions
How high does density altitude get at 2U7 in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Stanley reaches roughly 9,173 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 2U7 on an average day?
It swings with the seasons: from roughly 4,732 ft at the coldest month's average temperature to about 7,766 ft at the warmest month's — all from a constant field elevation of 6,403 ft. The month-by-month table above carries the full year.
What is the field elevation of Stanley?
6,403 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 2U7 (FAA), in Stanley, Idaho.