Yellow Pine, Idaho · field elev 4,157 ft
Density Altitude at Reed Ranch (I92)
From a field elevation of 4,157 ft, a typical July afternoon at Reed Ranch (87 °F) raises density altitude to about 6,833 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 24.2 | 2,827 ft | 36.1 | 3,639 ft |
| February | 28.2 | 3,103 ft | 40.4 | 3,926 ft |
| March | 34.6 | 3,538 ft | 46.3 | 4,315 ft |
| April | 42.3 | 4,052 ft | 55.7 | 4,924 ft |
| May | 49.7 | 4,537 ft | 64.1 | 5,457 ft ▲ |
| June | 57.7 | 5,052 ft | 73.9 | 6,065 ft ▲ |
| July | 65.8 | 5,563 ft | 86.6 | 6,833 ft ▲ |
| August | 65.5 | 5,545 ft | 86.5 | 6,827 ft ▲ |
| September | 56.8 | 4,995 ft | 76.4 | 6,218 ft ▲ |
| October | 44.7 | 4,210 ft | 59.4 | 5,160 ft ▲ |
| November | 32.5 | 3,396 ft | 43.0 | 4,098 ft |
| December | 24.1 | 2,820 ft | 33.6 | 3,470 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 I92
DENSITY ALTITUDE caution
Field elevation 4,157 ft — the air behaves like 6,857 ft.
- PRESSURE ALT
- 4,159 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
- 24K — Krassel Usfs
Mc Call · elev 3,982 ft
- 3U2 — Johnson Creek
Yellow Pine · elev 4,960 ft
- KMYL — Mc Call Municipal
Mc Call · elev 5,024 ft
- 0U0 — Landmark Usfs
Landmark · elev 6,662 ft
- U84 — Donald D Coski Meml
Donnelly · elev 4,860 ft
- U60 — Big Creek
Big Creek · elev 5,743 ft
- 3U1 — Warren /Usfs/
Warren · elev 5,902 ft
- 1U4 — New Meadows
New Meadows · elev 3,908 ft
Frequently asked questions
How high does density altitude get at I92 in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Reed Ranch reaches roughly 6,833 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 I92 on an average day?
It swings with the seasons: from roughly 2,820 ft at the coldest month's average temperature to about 5,563 ft at the warmest month's — all from a constant field elevation of 4,157 ft. The month-by-month table above carries the full year.
What is the field elevation of Reed Ranch?
4,157 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is I92 (FAA), in Yellow Pine, Idaho.