Fillmore, Utah · field elev 4,985 ft
Density Altitude at Fillmore Municipal (KFOM)
From a field elevation of 4,985 ft, a typical July afternoon at Fillmore Municipal (88 °F) raises density altitude to about 7,942 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 | 29.6 | 4,228 ft | 38.1 | 4,798 ft |
| February | 34.7 | 4,571 ft | 44.5 | 5,219 ft ▲ |
| March | 43.5 | 5,154 ft | 54.9 | 5,890 ft ▲ |
| April | 49.4 | 5,537 ft | 62.0 | 6,338 ft ▲ |
| May | 58.4 | 6,112 ft | 72.0 | 6,957 ft ▲ |
| June | 67.8 | 6,699 ft | 82.2 | 7,574 ft ▲ |
| July | 74.4 | 7,104 ft | 88.4 | 7,942 ft ▲ |
| August | 73.1 | 7,024 ft | 86.2 | 7,812 ft ▲ |
| September | 64.4 | 6,488 ft | 77.5 | 7,292 ft ▲ |
| October | 51.8 | 5,692 ft | 64.4 | 6,488 ft ▲ |
| November | 39.2 | 4,871 ft | 49.7 | 5,557 ft ▲ |
| December | 29.2 | 4,200 ft | 37.7 | 4,771 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 KFOM
DENSITY ALTITUDE caution
Field elevation 4,985 ft — the air behaves like 7,918 ft.
- PRESSURE ALT
- 4,987 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
- KRIF — Richfield Municipal
Richfield · elev 5,318 ft
- 44U — Salina-Gunnison
Salina · elev 5,159 ft
- KDTA — Delta Municipal
Delta · elev 4,760 ft
- 41U — Sanpete County Regional
Manti · elev 5,516 ft
- U13 — Junction
Junction · elev 6,069 ft
- KMLF — Milford Municipal/Ben And Judy Briscoe Field
Milford · elev 5,042 ft
- U52 — Beaver Municipal
Beaver · elev 5,863 ft
- 38U — Wayne Wonderland
Loa · elev 7,027 ft
Frequently asked questions
How high does density altitude get at KFOM in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Fillmore Municipal reaches roughly 7,942 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 KFOM on an average day?
It swings with the seasons: from roughly 4,200 ft at the coldest month's average temperature to about 7,104 ft at the warmest month's — all from a constant field elevation of 4,985 ft. The month-by-month table above carries the full year.
What is the field elevation of Fillmore Municipal?
4,985 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFOM (ICAO) / FOM (FAA), in Fillmore, Utah.