Bozeman, Montana · field elev 4,473 ft
Density Altitude at Bozeman Yellowstone International (KBZN)
From a field elevation of 4,473 ft, a typical July afternoon at Bozeman Yellowstone International (85 °F) raises density altitude to about 7,144 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 | 21.2 | 3,013 ft | 32.2 | 3,768 ft |
| February | 24.2 | 3,221 ft | 35.6 | 3,997 ft |
| March | 34.0 | 3,889 ft | 46.4 | 4,712 ft |
| April | 42.2 | 4,436 ft | 55.3 | 5,287 ft ▲ |
| May | 51.3 | 5,030 ft | 65.0 | 5,900 ft ▲ |
| June | 58.9 | 5,516 ft | 73.8 | 6,444 ft ▲ |
| July | 67.4 | 6,049 ft | 85.4 | 7,144 ft ▲ |
| August | 65.8 | 5,950 ft | 84.1 | 7,067 ft ▲ |
| September | 56.3 | 5,351 ft | 73.0 | 6,395 ft ▲ |
| October | 43.4 | 4,515 ft | 57.5 | 5,427 ft ▲ |
| November | 30.0 | 3,619 ft | 41.7 | 4,403 ft |
| December | 20.7 | 2,978 ft | 31.7 | 3,734 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 KBZN
DENSITY ALTITUDE caution
Field elevation 4,473 ft — the air behaves like 7,121 ft.
- PRESSURE ALT
- 4,475 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 Montana fields
- 9S5 — Three Forks
Three Forks · elev 4,089 ft
- 9U1 — Wilsall
Wilsall · elev 5,140 ft
- KLVM — Mission Field
Livingston · elev 4,659 ft
- 8U8 — Townsend
Townsend · elev 3,897 ft
- KEKS — Ennis Big Sky
Ennis · elev 5,433 ft
- 8U9 — Canyon Ferry
Townsend · elev 3,840 ft
- 7S6 — White Sulphur Springs
White Sulphur Springs · elev 5,065 ft
- 29S — Gardiner
Gardiner · elev 5,286 ft
Frequently asked questions
How high does density altitude get at KBZN in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Bozeman Yellowstone International reaches roughly 7,144 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 KBZN on an average day?
It swings with the seasons: from roughly 2,978 ft at the coldest month's average temperature to about 6,049 ft at the warmest month's — all from a constant field elevation of 4,473 ft. The month-by-month table above carries the full year.
What is the field elevation of Bozeman Yellowstone International?
4,473 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KBZN (ICAO) / BZN (FAA), in Bozeman, Montana.