Carey, Idaho · field elev 5,359 ft
Density Altitude at Hollow Top (0U7)
From a field elevation of 5,359 ft, a typical July afternoon at Hollow Top (82 °F) raises density altitude to about 7,986 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 | 16.0 | 3,757 ft | 24.8 | 4,366 ft |
| February | 19.5 | 4,001 ft | 29.1 | 4,658 ft |
| March | 28.6 | 4,624 ft | 39.0 | 5,320 ft ▲ |
| April | 37.8 | 5,240 ft | 50.2 | 6,049 ft ▲ |
| May | 46.8 | 5,829 ft | 60.7 | 6,714 ft ▲ |
| June | 55.6 | 6,393 ft | 70.7 | 7,333 ft ▲ |
| July | 65.4 | 7,007 ft | 81.5 | 7,986 ft ▲ |
| August | 63.4 | 6,883 ft | 79.8 | 7,884 ft ▲ |
| September | 53.9 | 6,285 ft | 69.3 | 7,247 ft ▲ |
| October | 40.3 | 5,405 ft | 53.6 | 6,266 ft ▲ |
| November | 26.0 | 4,447 ft | 36.2 | 5,134 ft ▲ |
| December | 16.0 | 3,757 ft | 24.1 | 4,318 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 0U7
DENSITY ALTITUDE high DA
Field elevation 5,359 ft — the air behaves like 8,015 ft.
- PRESSURE ALT
- 5,361 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- 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
- U65 — Carey
Carey · elev 4,789 ft
- U48 — Coxs Well
Atomic City · elev 5,048 ft
- U99 — Laidlaw Corrals
Kimama · elev 4,448 ft
- KAOC — Arco-Butte County
Arco · elev 5,335 ft
- U92 — Antelope Valley
Moore · elev 6,193 ft
- 1U0 — Bear Trap
Minidoka · elev 4,716 ft
- U46 — Big Southern Butte
Atomic City · elev 5,073 ft
- 0U2 — Copper Basin
Mackay · elev 7,920 ft
Frequently asked questions
How high does density altitude get at 0U7 in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Hollow Top reaches roughly 7,986 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 0U7 on an average day?
It swings with the seasons: from roughly 3,757 ft at the coldest month's average temperature to about 7,007 ft at the warmest month's — all from a constant field elevation of 5,359 ft. The month-by-month table above carries the full year.
What is the field elevation of Hollow Top?
5,359 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 0U7 (FAA), in Carey, Idaho.