Burley, Idaho · field elev 4,154 ft
Density Altitude at Burley Municipal (KBYI)
From a field elevation of 4,154 ft, a typical July afternoon at Burley Municipal (88 °F) raises density altitude to about 6,907 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 | 29.2 | 3,167 ft | 37.4 | 3,722 ft |
| February | 33.3 | 3,446 ft | 42.7 | 4,075 ft |
| March | 41.4 | 3,989 ft | 53.0 | 4,747 ft |
| April | 47.1 | 4,364 ft | 59.5 | 5,163 ft ▲ |
| May | 55.8 | 4,927 ft | 69.1 | 5,765 ft ▲ |
| June | 63.4 | 5,409 ft | 78.0 | 6,312 ft ▲ |
| July | 71.5 | 5,914 ft | 87.9 | 6,907 ft ▲ |
| August | 69.9 | 5,815 ft | 86.7 | 6,835 ft ▲ |
| September | 60.8 | 5,245 ft | 76.6 | 6,227 ft ▲ |
| October | 49.1 | 4,495 ft | 62.6 | 5,359 ft ▲ |
| November | 37.6 | 3,736 ft | 48.2 | 4,436 ft |
| December | 29.2 | 3,167 ft | 37.3 | 3,716 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 KBYI
DENSITY ALTITUDE caution
Field elevation 4,154 ft — the air behaves like 6,913 ft.
- PRESSURE ALT
- 4,156 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
- U94 — Hazelton Municipal
Hazelton · elev 4,172 ft
- 1U6 — Oakley Municipal
Oakley · elev 4,664 ft
- U99 — Laidlaw Corrals
Kimama · elev 4,448 ft
- KTWF — Joslin Field/Magic Valley Regional
Twin Falls · elev 4,153 ft
- 1U0 — Bear Trap
Minidoka · elev 4,716 ft
- KJER — Jerome County
Jerome · elev 4,053 ft
- U01 — Savage Field
American Falls · elev 4,420 ft
- U36 — Aberdeen Municipal
Aberdeen · elev 4,474 ft
Frequently asked questions
How high does density altitude get at KBYI in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Burley Municipal reaches roughly 6,907 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 KBYI on an average day?
It swings with the seasons: from roughly 3,167 ft at the coldest month's average temperature to about 5,914 ft at the warmest month's — all from a constant field elevation of 4,154 ft. The month-by-month table above carries the full year.
What is the field elevation of Burley Municipal?
4,154 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KBYI (ICAO) / BYI (FAA), in Burley, Idaho.