Bluff, Utah · field elev 4,476 ft
Density Altitude at Bluff (66V)
From a field elevation of 4,476 ft, a typical July afternoon at Bluff (96 °F) raises density altitude to about 7,766 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 | 31.5 | 3,724 ft | 43.2 | 4,506 ft |
| February | 38.1 | 4,168 ft | 51.4 | 5,040 ft ▲ |
| March | 47.4 | 4,781 ft | 62.8 | 5,766 ft ▲ |
| April | 55.3 | 5,291 ft | 71.4 | 6,300 ft ▲ |
| May | 64.1 | 5,847 ft | 80.7 | 6,866 ft ▲ |
| June | 73.7 | 6,441 ft | 91.8 | 7,527 ft ▲ |
| July | 79.8 | 6,812 ft | 95.9 | 7,766 ft ▲ |
| August | 77.4 | 6,667 ft | 92.6 | 7,574 ft ▲ |
| September | 68.0 | 6,090 ft | 84.2 | 7,076 ft ▲ |
| October | 54.2 | 5,220 ft | 70.2 | 6,226 ft ▲ |
| November | 40.9 | 4,354 ft | 55.1 | 5,278 ft ▲ |
| December | 31.4 | 3,717 ft | 43.0 | 4,492 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 66V
DENSITY ALTITUDE caution
Field elevation 4,476 ft — the air behaves like 7,772 ft.
- PRESSURE ALT
- 4,478 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
- KBDG — Blanding Municipal
Blanding · elev 5,868 ft
- U64 — Monticello
Monticello · elev 6,970 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
- KCNY — Canyonlands Regional
Moab · elev 4,579 ft
- 1L7 — Escalante Municipal
Escalante · elev 5,737 ft
- U34 — Green River Municipal
Green River · elev 4,234 ft
Frequently asked questions
How high does density altitude get at 66V in summer?
On a typical July afternoon — around 96 °F at the nearest NOAA normals station — density altitude at Bluff reaches roughly 7,766 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 66V on an average day?
It swings with the seasons: from roughly 3,717 ft at the coldest month's average temperature to about 6,812 ft at the warmest month's — all from a constant field elevation of 4,476 ft. The month-by-month table above carries the full year.
What is the field elevation of Bluff?
4,476 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 66V (FAA), in Bluff, Utah.