Logan, Utah · field elev 4,457 ft
Density Altitude at Logan-Cache (KLGU)
From a field elevation of 4,457 ft, a typical July afternoon at Logan-Cache (91 °F) raises density altitude to about 7,457 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 | 23.5 | 3,153 ft | 31.8 | 3,721 ft |
| February | 27.7 | 3,442 ft | 37.1 | 4,078 ft |
| March | 39.5 | 4,237 ft | 50.2 | 4,939 ft |
| April | 47.1 | 4,738 ft | 59.5 | 5,534 ft ▲ |
| May | 55.4 | 5,274 ft | 69.2 | 6,141 ft ▲ |
| June | 63.9 | 5,811 ft | 80.6 | 6,837 ft ▲ |
| July | 73.0 | 6,375 ft | 91.0 | 7,457 ft ▲ |
| August | 71.0 | 6,252 ft | 89.0 | 7,339 ft ▲ |
| September | 61.0 | 5,629 ft | 77.9 | 6,674 ft ▲ |
| October | 48.2 | 4,809 ft | 62.8 | 5,742 ft ▲ |
| November | 36.1 | 4,011 ft | 47.0 | 4,731 ft |
| December | 25.1 | 3,263 ft | 33.2 | 3,816 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 KLGU
DENSITY ALTITUDE caution
Field elevation 4,457 ft — the air behaves like 7,457 ft.
- PRESSURE ALT
- 4,459 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
- KBMC — Brigham City Regional
Brigham City · elev 4,230 ft
- KOGD — Ogden-Hinckley
Ogden · elev 4,473 ft
- 42U — Morgan County
Morgan · elev 5,020 ft
- 2UT — Fremont Island Upper
Hooper · elev 4,654 ft
- 1UT — Fremont Island Lower
Hooper · elev 4,234 ft
- KBTF — Skypark
Bountiful · elev 4,237 ft
- KSLC — Salt Lake City International
Salt Lake City · elev 4,231 ft
- KSVR — South Valley Regional
Salt Lake City · elev 4,606 ft
Frequently asked questions
How high does density altitude get at KLGU in summer?
On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Logan-Cache reaches roughly 7,457 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 KLGU on an average day?
It swings with the seasons: from roughly 3,153 ft at the coldest month's average temperature to about 6,375 ft at the warmest month's — all from a constant field elevation of 4,457 ft. The month-by-month table above carries the full year.
What is the field elevation of Logan-Cache?
4,457 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KLGU (ICAO) / LGU (FAA), in Logan, Utah.