Hooper, Utah · field elev 4,654 ft
Density Altitude at Fremont Island Upper (2UT)
From a field elevation of 4,654 ft, a typical July afternoon at Fremont Island Upper (91 °F) raises density altitude to about 7,712 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 | 28.5 | 3,741 ft | 35.7 | 4,228 ft |
| February | 33.4 | 4,073 ft | 41.9 | 4,640 ft |
| March | 42.9 | 4,706 ft | 52.7 | 5,343 ft ▲ |
| April | 49.1 | 5,110 ft | 59.6 | 5,782 ft ▲ |
| May | 58.6 | 5,719 ft | 70.1 | 6,437 ft ▲ |
| June | 68.4 | 6,332 ft | 81.5 | 7,131 ft ▲ |
| July | 78.0 | 6,920 ft | 91.3 | 7,712 ft ▲ |
| August | 75.8 | 6,786 ft | 88.7 | 7,559 ft ▲ |
| September | 65.4 | 6,146 ft | 77.8 | 6,908 ft ▲ |
| October | 51.7 | 5,278 ft | 62.7 | 5,977 ft ▲ |
| November | 39.5 | 4,481 ft | 48.5 | 5,072 ft ▲ |
| December | 29.6 | 3,816 ft | 36.8 | 4,301 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 2UT
DENSITY ALTITUDE caution
Field elevation 4,654 ft — the air behaves like 7,695 ft.
- PRESSURE ALT
- 4,656 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
- 1UT — Fremont Island Lower
Hooper · elev 4,234 ft
- KOGD — Ogden-Hinckley
Ogden · elev 4,473 ft
- KBTF — Skypark
Bountiful · elev 4,237 ft
- 42U — Morgan County
Morgan · elev 5,020 ft
- KBMC — Brigham City Regional
Brigham City · elev 4,230 ft
- KSLC — Salt Lake City International
Salt Lake City · elev 4,231 ft
- KTVY — Bolinder Field/Tooele Valley
Tooele · elev 4,321 ft
- KSVR — South Valley Regional
Salt Lake City · elev 4,606 ft
Frequently asked questions
How high does density altitude get at 2UT in summer?
On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Fremont Island Upper reaches roughly 7,712 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 2UT on an average day?
It swings with the seasons: from roughly 3,741 ft at the coldest month's average temperature to about 6,920 ft at the warmest month's — all from a constant field elevation of 4,654 ft. The month-by-month table above carries the full year.
What is the field elevation of Fremont Island Upper?
4,654 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 2UT (FAA), in Hooper, Utah.