Kimama, Idaho · field elev 4,448 ft
Density Altitude at Laidlaw Corrals (U99)
From a field elevation of 4,448 ft, a typical July afternoon at Laidlaw Corrals (89 °F) raises density altitude to about 7,322 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 | 22.8 | 3,093 ft | 31.7 | 3,703 ft |
| February | 27.5 | 3,417 ft | 37.2 | 4,073 ft |
| March | 36.8 | 4,046 ft | 48.6 | 4,824 ft |
| April | 44.5 | 4,557 ft | 58.3 | 5,447 ft ▲ |
| May | 53.6 | 5,147 ft | 68.4 | 6,081 ft ▲ |
| June | 62.0 | 5,681 ft | 78.0 | 6,669 ft ▲ |
| July | 71.0 | 6,241 ft | 88.9 | 7,322 ft ▲ |
| August | 70.0 | 6,180 ft | 87.9 | 7,263 ft ▲ |
| September | 60.2 | 5,568 ft | 77.3 | 6,627 ft ▲ |
| October | 47.2 | 4,733 ft | 62.2 | 5,694 ft ▲ |
| November | 34.1 | 3,865 ft | 45.2 | 4,602 ft |
| December | 24.0 | 3,176 ft | 32.6 | 3,764 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 U99
DENSITY ALTITUDE caution
Field elevation 4,448 ft — the air behaves like 7,328 ft.
- PRESSURE ALT
- 4,450 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
- 1U0 — Bear Trap
Minidoka · elev 4,716 ft
- 0U7 — Hollow Top
Carey · elev 5,359 ft
- U65 — Carey
Carey · elev 4,789 ft
- U48 — Coxs Well
Atomic City · elev 5,048 ft
- KBYI — Burley Municipal
Burley · elev 4,154 ft
- U93 — Magic Reservoir
Hailey · elev 4,844 ft
- U94 — Hazelton Municipal
Hazelton · elev 4,172 ft
- KJER — Jerome County
Jerome · elev 4,053 ft
Frequently asked questions
How high does density altitude get at U99 in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Laidlaw Corrals reaches roughly 7,322 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 U99 on an average day?
It swings with the seasons: from roughly 3,093 ft at the coldest month's average temperature to about 6,241 ft at the warmest month's — all from a constant field elevation of 4,448 ft. The month-by-month table above carries the full year.
What is the field elevation of Laidlaw Corrals?
4,448 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is U99 (FAA), in Kimama, Idaho.