Morgan, Utah · field elev 5,020 ft
Density Altitude at Morgan County (42U)
Morgan County is a genuine high-and-hot field: from 5,020 ft of elevation, a typical July afternoon (92 °F) pushes density altitude to about 8,184 ft — the airplane performs like it is 3,164 ft above the field before the wheels roll.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 25.3 | 3,978 ft | 36.5 | 4,735 ft |
| February | 29.6 | 4,271 ft | 42.0 | 5,098 ft ▲ |
| March | 39.0 | 4,901 ft | 53.3 | 5,831 ft ▲ |
| April | 45.7 | 5,340 ft | 60.6 | 6,293 ft ▲ |
| May | 54.7 | 5,920 ft | 70.8 | 6,926 ft ▲ |
| June | 63.3 | 6,462 ft | 81.8 | 7,593 ft ▲ |
| July | 71.9 | 6,994 ft | 91.8 | 8,184 ft ⚠ |
| August | 70.1 | 6,883 ft | 89.5 | 8,049 ft ⚠ |
| September | 60.5 | 6,287 ft | 79.6 | 7,461 ft ▲ |
| October | 48.3 | 5,509 ft | 65.7 | 6,612 ft ▲ |
| November | 35.8 | 4,688 ft | 49.5 | 5,587 ft ▲ |
| December | 25.4 | 3,985 ft | 36.5 | 4,735 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 42U
DENSITY ALTITUDE high DA
Field elevation 5,020 ft — the air behaves like 8,195 ft.
- PRESSURE ALT
- 5,022 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 Utah fields
- KOGD — Ogden-Hinckley
Ogden · elev 4,473 ft
- KBTF — Skypark
Bountiful · elev 4,237 ft
- KSLC — Salt Lake City International
Salt Lake City · elev 4,231 ft
- 2UT — Fremont Island Upper
Hooper · elev 4,654 ft
- KBMC — Brigham City Regional
Brigham City · elev 4,230 ft
- 1UT — Fremont Island Lower
Hooper · elev 4,234 ft
- KSVR — South Valley Regional
Salt Lake City · elev 4,606 ft
- KLGU — Logan-Cache
Logan · elev 4,457 ft
Frequently asked questions
How high does density altitude get at 42U in summer?
On a typical July afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Morgan County reaches roughly 8,184 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 42U on an average day?
It swings with the seasons: from roughly 3,978 ft at the coldest month's average temperature to about 6,994 ft at the warmest month's — all from a constant field elevation of 5,020 ft. The month-by-month table above carries the full year.
What is the field elevation of Morgan County?
5,020 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 42U (FAA), in Morgan, Utah.