Monticello, Utah · field elev 6,970 ft
Density Altitude at Monticello (U64)
Monticello is a genuine high-and-hot field: from 6,970 ft of elevation, a typical July afternoon (84 °F) pushes density altitude to about 10,094 ft — the airplane performs like it is 3,124 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 | 27.0 | 6,515 ft | 37.2 | 7,190 ft ▲ |
| February | 30.4 | 6,742 ft | 40.7 | 7,418 ft ▲ |
| March | 38.2 | 7,255 ft | 50.1 | 8,020 ft ⚠ |
| April | 44.6 | 7,669 ft | 58.0 | 8,515 ft ⚠ |
| May | 53.2 | 8,215 ft | 67.1 | 9,074 ft ⚠ |
| June | 63.7 | 8,867 ft | 79.0 | 9,788 ft ⚠ |
| July | 69.8 | 9,238 ft | 84.2 | 10,094 ft ⚠ |
| August | 67.5 | 9,099 ft | 81.3 | 9,924 ft ⚠ |
| September | 59.9 | 8,633 ft | 73.6 | 9,467 ft ⚠ |
| October | 48.8 | 7,937 ft | 61.5 | 8,732 ft ⚠ |
| November | 37.1 | 7,183 ft | 48.0 | 7,886 ft ▲ |
| December | 27.7 | 6,562 ft | 38.3 | 7,262 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 U64
DENSITY ALTITUDE high DA
Field elevation 6,970 ft — the air behaves like 10,082 ft.
- PRESSURE ALT
- 6,972 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- 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
- KBDG — Blanding Municipal
Blanding · elev 5,868 ft
- 66V — Bluff
Bluff · elev 4,476 ft
- KCNY — Canyonlands Regional
Moab · elev 4,579 ft
- U96 — Cal Black Meml
Halls Crossing · elev 4,395 ft
- U07 — Bullfrog Basin
Glen Canyon Natl Rec Area · elev 4,167 ft
- KHVE — Hanksville
Hanksville · elev 4,454 ft
- U34 — Green River Municipal
Green River · elev 4,234 ft
- 1L7 — Escalante Municipal
Escalante · elev 5,737 ft
Frequently asked questions
How high does density altitude get at U64 in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Monticello reaches roughly 10,094 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 U64 on an average day?
It swings with the seasons: from roughly 6,515 ft at the coldest month's average temperature to about 9,238 ft at the warmest month's — all from a constant field elevation of 6,970 ft. The month-by-month table above carries the full year.
What is the field elevation of Monticello?
6,970 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is U64 (FAA), in Monticello, Utah.