Fremont, Michigan · field elev 772 ft
Density Altitude at Fremont Municipal (KFFX)
Fremont Municipal sits at 772 ft, and even a typical July afternoon (80 °F) only lifts density altitude to about 2,293 ft — heat still trims performance, but the field rarely turns high-and-hot.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 22.7 | −1,512 ft | 29.6 | −1,023 ft |
| February | 24.0 | −1,419 ft | 31.8 | −868 ft |
| March | 32.6 | −813 ft | 42.0 | −164 ft |
| April | 44.1 | −21 ft | 54.8 | 695 ft |
| May | 55.5 | 741 ft | 66.7 | 1,470 ft |
| June | 65.2 | 1,374 ft | 76.2 | 2,074 ft |
| July | 68.8 | 1,605 ft | 79.7 | 2,293 ft |
| August | 67.1 | 1,496 ft | 77.9 | 2,180 ft |
| September | 60.7 | 1,082 ft | 71.4 | 1,771 ft |
| October | 48.9 | 302 ft | 58.7 | 951 ft |
| November | 37.3 | −487 ft | 44.9 | 33 ft |
| December | 28.0 | −1,135 ft | 34.4 | −687 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 KFFX
DENSITY ALTITUDE
Field elevation 772 ft — the air behaves like 2,312 ft.
- PRESSURE ALT
- 773 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 Michigan fields
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- 24M — Wilderness Airpark
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- C04 — Oceana County
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- KMKG — Muskegon County
Muskegon · elev 628 ft
- 39Z — Flying-A-Ranch
Fruitport · elev 630 ft
- 5N7 — Hat Field
Nunica · elev 625 ft
- 73G — Cherry Field
Nunica · elev 629 ft
- 8D4 — Paul C Miller/Sparta
Sparta · elev 775 ft
Frequently asked questions
How high does density altitude get at KFFX in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Fremont Municipal reaches roughly 2,293 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 KFFX on an average day?
It swings with the seasons: from roughly −1,512 ft at the coldest month's average temperature to about 1,605 ft at the warmest month's — all from a constant field elevation of 772 ft. The month-by-month table above carries the full year.
What is the field elevation of Fremont Municipal?
772 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFFX (ICAO) / FFX (FAA), in Fremont, Michigan.