Fort Peck, Montana · field elev 2,290 ft
Density Altitude at Fort Peck (37S)
Fort Peck sits at 2,290 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 4,688 ft — heat still trims performance, but the field rarely turns high-and-hot.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 17.9 | 49 ft | 28.3 | 783 ft |
| February | 22.4 | 369 ft | 33.2 | 1,122 ft |
| March | 34.3 | 1,197 ft | 46.2 | 2,002 ft |
| April | 46.9 | 2,048 ft | 60.0 | 2,906 ft |
| May | 57.2 | 2,725 ft | 70.7 | 3,586 ft |
| June | 66.3 | 3,308 ft | 79.6 | 4,140 ft |
| July | 73.5 | 3,762 ft | 88.6 | 4,688 ft |
| August | 72.6 | 3,705 ft | 88.3 | 4,670 ft |
| September | 62.1 | 3,041 ft | 76.6 | 3,954 ft |
| October | 48.8 | 2,174 ft | 60.9 | 2,964 ft |
| November | 33.9 | 1,170 ft | 44.1 | 1,862 ft |
| December | 22.4 | 369 ft | 32.3 | 1,060 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 37S
DENSITY ALTITUDE
Field elevation 2,290 ft — the air behaves like 4,712 ft.
- PRESSURE ALT
- 2,291 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
- KGGW — Wokal Field/Glasgow-Valley County
Glasgow · elev 2,296 ft
- 6U5 — Hinsdale
Hinsdale · elev 2,220 ft
- KOLF — L M Clayton
Wolf Point · elev 1,989 ft
- KJDN — Jordan
Jordan · elev 2,667 ft
- 4U6 — Circle Town County
Circle · elev 2,441 ft
- S00 — Opheim
Opheim · elev 3,264 ft
- PO1 — Poplar Municipal
Poplar · elev 2,037 ft
- 7U8 — Richey
Richey · elev 2,494 ft
Frequently asked questions
How high does density altitude get at 37S in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Fort Peck reaches roughly 4,688 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 37S on an average day?
It swings with the seasons: from roughly 49 ft at the coldest month's average temperature to about 3,762 ft at the warmest month's — all from a constant field elevation of 2,290 ft. The month-by-month table above carries the full year.
What is the field elevation of Fort Peck?
2,290 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 37S (FAA), in Fort Peck, Montana.