White Sulphur Springs, Montana · field elev 5,065 ft
Density Altitude at White Sulphur Springs (7S6)
From a field elevation of 5,065 ft, a typical July afternoon at White Sulphur Springs (82 °F) raises density altitude to about 7,635 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 | 23.4 | 3,904 ft | 33.4 | 4,583 ft |
| February | 23.7 | 3,924 ft | 34.6 | 4,663 ft |
| March | 32.7 | 4,536 ft | 44.6 | 5,324 ft ▲ |
| April | 39.7 | 5,002 ft | 52.9 | 5,860 ft ▲ |
| May | 48.7 | 5,590 ft | 62.7 | 6,480 ft ▲ |
| June | 56.7 | 6,102 ft | 71.3 | 7,012 ft ▲ |
| July | 64.8 | 6,611 ft | 81.6 | 7,635 ft ▲ |
| August | 64.0 | 6,561 ft | 81.4 | 7,623 ft ▲ |
| September | 54.7 | 5,975 ft | 70.6 | 6,969 ft ▲ |
| October | 42.8 | 5,206 ft | 56.3 | 6,077 ft ▲ |
| November | 31.1 | 4,428 ft | 41.7 | 5,134 ft ▲ |
| December | 23.0 | 3,876 ft | 32.6 | 4,529 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 7S6
DENSITY ALTITUDE caution
Field elevation 5,065 ft — the air behaves like 7,659 ft.
- PRESSURE ALT
- 5,067 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
- M42 — Russian Flat
Russian Flat · elev 6,336 ft
- 8U8 — Townsend
Townsend · elev 3,897 ft
- 8U9 — Canyon Ferry
Townsend · elev 3,840 ft
- 9U1 — Wilsall
Wilsall · elev 5,140 ft
- KHWQ — Wheatland County At Harlowton
Harlowton · elev 4,312 ft
- KBZN — Bozeman Yellowstone International
Bozeman · elev 4,473 ft
- KHLN — Helena Regional
Helena · elev 3,877 ft
- 9S5 — Three Forks
Three Forks · elev 4,089 ft
Frequently asked questions
How high does density altitude get at 7S6 in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at White Sulphur Springs reaches roughly 7,635 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 7S6 on an average day?
It swings with the seasons: from roughly 3,876 ft at the coldest month's average temperature to about 6,611 ft at the warmest month's — all from a constant field elevation of 5,065 ft. The month-by-month table above carries the full year.
What is the field elevation of White Sulphur Springs?
5,065 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 7S6 (FAA), in White Sulphur Springs, Montana.