Richey, Montana · field elev 2,494 ft
Density Altitude at Richey (7U8)
Richey sits at 2,494 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 4,718 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 | 15.8 | 155 ft | 26.7 | 926 ft |
| February | 19.4 | 412 ft | 30.4 | 1,183 ft |
| March | 31.9 | 1,287 ft | 43.9 | 2,101 ft |
| April | 44.0 | 2,108 ft | 57.2 | 2,976 ft |
| May | 54.7 | 2,813 ft | 68.0 | 3,666 ft |
| June | 63.2 | 3,361 ft | 76.1 | 4,172 ft |
| July | 70.5 | 3,823 ft | 85.0 | 4,718 ft |
| August | 69.7 | 3,773 ft | 84.7 | 4,700 ft |
| September | 59.0 | 3,092 ft | 73.5 | 4,011 ft |
| October | 44.8 | 2,161 ft | 57.4 | 2,989 ft |
| November | 30.4 | 1,183 ft | 41.7 | 1,953 ft |
| December | 19.3 | 405 ft | 30.0 | 1,155 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 7U8
DENSITY ALTITUDE
Field elevation 2,494 ft — the air behaves like 4,718 ft.
- PRESSURE ALT
- 2,496 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
- 4U6 — Circle Town County
Circle · elev 2,441 ft
- PO1 — Poplar Municipal
Poplar · elev 2,037 ft
- KGDV — Dawson Community
Glendive · elev 2,458 ft
- KOLF — L M Clayton
Wolf Point · elev 1,989 ft
- KSDY — Sidney-Richland Regional
Sidney · elev 1,985 ft
- S85 — Big Sky Field
Culbertson · elev 1,953 ft
- 5U6 — Fairview
Fairview · elev 2,152 ft
- 8U6 — Terry
Terry · elev 2,283 ft
Frequently asked questions
How high does density altitude get at 7U8 in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Richey reaches roughly 4,718 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 7U8 on an average day?
It swings with the seasons: from roughly 155 ft at the coldest month's average temperature to about 3,823 ft at the warmest month's — all from a constant field elevation of 2,494 ft. The month-by-month table above carries the full year.
What is the field elevation of Richey?
2,494 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 7U8 (FAA), in Richey, Montana.