Sand Springs, Montana · field elev 3,180 ft
Density Altitude at Sand Springs Strip (8U1)
From a field elevation of 3,180 ft, a typical July afternoon at Sand Springs Strip (88 °F) raises density altitude to about 5,726 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 | 24.3 | 1,615 ft | 34.2 | 2,298 ft |
| February | 27.5 | 1,838 ft | 37.7 | 2,535 ft |
| March | 37.3 | 2,508 ft | 48.5 | 3,254 ft |
| April | 46.8 | 3,142 ft | 58.6 | 3,910 ft |
| May | 56.0 | 3,742 ft | 67.8 | 4,493 ft |
| June | 65.2 | 4,330 ft | 77.5 | 5,095 ft ▲ |
| July | 73.7 | 4,861 ft | 87.9 | 5,726 ft ▲ |
| August | 72.4 | 4,781 ft | 86.9 | 5,666 ft ▲ |
| September | 62.1 | 4,133 ft | 75.8 | 4,991 ft |
| October | 48.5 | 3,254 ft | 60.2 | 4,012 ft |
| November | 35.9 | 2,413 ft | 46.4 | 3,116 ft |
| December | 26.9 | 1,796 ft | 36.6 | 2,460 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 8U1
DENSITY ALTITUDE caution
Field elevation 3,180 ft — the air behaves like 5,732 ft.
- PRESSURE ALT
- 3,182 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
- KJDN — Jordan
Jordan · elev 2,667 ft
- 7S2 — Winnett
Winnett · elev 2,989 ft
- 6U7 — Hysham
Hysham · elev 2,624 ft
- KRPX — Roundup
Roundup · elev 3,490 ft
- 1S3 — Tillitt Field
Forsyth · elev 2,729 ft
- MT3 — Knox Ridge
Winifred · elev 2,950 ft
- L51 — Heller Farm
Winifred · elev 2,304 ft
- 37S — Fort Peck
Fort Peck · elev 2,290 ft
Frequently asked questions
How high does density altitude get at 8U1 in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Sand Springs Strip reaches roughly 5,726 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 8U1 on an average day?
It swings with the seasons: from roughly 1,615 ft at the coldest month's average temperature to about 4,861 ft at the warmest month's — all from a constant field elevation of 3,180 ft. The month-by-month table above carries the full year.
What is the field elevation of Sand Springs Strip?
3,180 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 8U1 (FAA), in Sand Springs, Montana.