Junction, Utah · field elev 6,069 ft
Density Altitude at Junction (U13)
Junction is a genuine high-and-hot field: from 6,069 ft of elevation, a typical July afternoon (90 °F) pushes density altitude to about 9,368 ft — the airplane performs like it is 3,299 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 | 30.4 | 5,626 ft | 44.6 | 6,561 ft ▲ |
| February | 34.7 | 5,913 ft | 48.8 | 6,831 ft ▲ |
| March | 41.7 | 6,373 ft | 57.8 | 7,401 ft ▲ |
| April | 48.2 | 6,793 ft | 64.6 | 7,824 ft ▲ |
| May | 56.5 | 7,320 ft | 73.9 | 8,391 ft ⚠ |
| June | 65.7 | 7,892 ft | 84.9 | 9,046 ft ⚠ |
| July | 72.2 | 8,288 ft | 90.4 | 9,368 ft ⚠ |
| August | 70.2 | 8,167 ft | 87.4 | 9,193 ft ⚠ |
| September | 62.4 | 7,688 ft | 80.5 | 8,786 ft ⚠ |
| October | 50.2 | 6,921 ft | 67.8 | 8,020 ft ⚠ |
| November | 38.9 | 6,190 ft | 55.1 | 7,232 ft ▲ |
| December | 29.4 | 5,559 ft | 42.9 | 6,451 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 U13
DENSITY ALTITUDE high DA
Field elevation 6,069 ft — the air behaves like 9,345 ft.
- PRESSURE ALT
- 6,071 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
- U52 — Beaver Municipal
Beaver · elev 5,863 ft
- U55 — Panguitch Municipal
Panguitch · elev 6,763 ft
- KRIF — Richfield Municipal
Richfield · elev 5,318 ft
- 38U — Wayne Wonderland
Loa · elev 7,027 ft
- KBCE — Bryce Canyon
Bryce Canyon · elev 7,590 ft
- 1L9 — Parowan
Parowan · elev 5,927 ft
- KMLF — Milford Municipal/Ben And Judy Briscoe Field
Milford · elev 5,042 ft
- KFOM — Fillmore Municipal
Fillmore · elev 4,985 ft
Frequently asked questions
How high does density altitude get at U13 in summer?
On a typical July afternoon — around 90 °F at the nearest NOAA normals station — density altitude at Junction reaches roughly 9,368 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 U13 on an average day?
It swings with the seasons: from roughly 5,559 ft at the coldest month's average temperature to about 8,288 ft at the warmest month's — all from a constant field elevation of 6,069 ft. The month-by-month table above carries the full year.
What is the field elevation of Junction?
6,069 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is U13 (FAA), in Junction, Utah.