Howe, Idaho · field elev 4,930 ft
Density Altitude at Howe (U97)
From a field elevation of 4,930 ft, a typical July afternoon at Howe (87 °F) raises density altitude to about 7,816 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 | 18.6 | 3,403 ft | 29.9 | 4,180 ft |
| February | 23.3 | 3,728 ft | 34.6 | 4,496 ft |
| March | 36.0 | 4,590 ft | 47.7 | 5,360 ft ▲ |
| April | 45.1 | 5,190 ft | 58.7 | 6,063 ft ▲ |
| May | 53.5 | 5,733 ft | 67.4 | 6,607 ft ▲ |
| June | 61.0 | 6,208 ft | 76.3 | 7,152 ft ▲ |
| July | 69.2 | 6,718 ft | 87.4 | 7,816 ft ▲ |
| August | 67.3 | 6,601 ft | 85.9 | 7,728 ft ▲ |
| September | 57.4 | 5,981 ft | 75.5 | 7,104 ft ▲ |
| October | 45.1 | 5,190 ft | 60.0 | 6,145 ft ▲ |
| November | 30.9 | 4,247 ft | 42.8 | 5,040 ft ▲ |
| December | 20.6 | 3,542 ft | 30.3 | 4,207 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 U97
DENSITY ALTITUDE caution
Field elevation 4,930 ft — the air behaves like 7,793 ft.
- PRESSURE ALT
- 4,932 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- AIR DENSITY
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- 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
- KAOC — Arco-Butte County
Arco · elev 5,335 ft
- 1U2 — Mud Lake/West Jefferson County
Mud Lake · elev 4,795 ft
- U46 — Big Southern Butte
Atomic City · elev 5,073 ft
- U62 — Mackay
Mackay · elev 5,892 ft
- U37 — Midway
Atomic City · elev 5,017 ft
- U92 — Antelope Valley
Moore · elev 6,193 ft
- 0U2 — Copper Basin
Mackay · elev 7,920 ft
- U48 — Coxs Well
Atomic City · elev 5,048 ft
Frequently asked questions
How high does density altitude get at U97 in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Howe reaches roughly 7,816 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 U97 on an average day?
It swings with the seasons: from roughly 3,403 ft at the coldest month's average temperature to about 6,718 ft at the warmest month's — all from a constant field elevation of 4,930 ft. The month-by-month table above carries the full year.
What is the field elevation of Howe?
4,930 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is U97 (FAA), in Howe, Idaho.