Hysham, Montana · field elev 2,624 ft
Density Altitude at Hysham (6U7)
From a field elevation of 2,624 ft, a typical July afternoon at Hysham (88 °F) raises density altitude to about 5,033 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 | 23.6 | 871 ft | 34.7 | 1,640 ft |
| February | 27.0 | 1,109 ft | 38.7 | 1,912 ft |
| March | 37.1 | 1,804 ft | 50.5 | 2,699 ft |
| April | 46.8 | 2,455 ft | 60.5 | 3,348 ft |
| May | 56.1 | 3,065 ft | 69.8 | 3,939 ft |
| June | 65.2 | 3,648 ft | 78.7 | 4,492 ft |
| July | 72.5 | 4,108 ft | 87.6 | 5,033 ft ▲ |
| August | 70.6 | 3,989 ft | 86.0 | 4,937 ft |
| September | 60.4 | 3,342 ft | 75.3 | 4,282 ft |
| October | 47.3 | 2,488 ft | 60.4 | 3,342 ft |
| November | 34.9 | 1,654 ft | 46.7 | 2,448 ft |
| December | 25.4 | 998 ft | 36.2 | 1,743 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 6U7
DENSITY ALTITUDE caution
Field elevation 2,624 ft — the air behaves like 5,057 ft.
- PRESSURE ALT
- 2,626 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- AIR DENSITY
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- 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
- 1S3 — Tillitt Field
Forsyth · elev 2,729 ft
- M46 — Colstrip
Colstrip · elev 3,428 ft
- 00U — Big Horn County
Hardin · elev 3,025 ft
- 8U1 — Sand Springs Strip
Sand Springs · elev 3,180 ft
- KMLS — Frank Wiley Field
Miles City · elev 2,634 ft
- 3U4 — St Labre Mission
Ashland · elev 2,909 ft
- KRPX — Roundup
Roundup · elev 3,490 ft
- KJDN — Jordan
Jordan · elev 2,667 ft
Frequently asked questions
How high does density altitude get at 6U7 in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Hysham reaches roughly 5,033 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 6U7 on an average day?
It swings with the seasons: from roughly 871 ft at the coldest month's average temperature to about 4,108 ft at the warmest month's — all from a constant field elevation of 2,624 ft. The month-by-month table above carries the full year.
What is the field elevation of Hysham?
2,624 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 6U7 (FAA), in Hysham, Montana.