Fairmont, Nebraska · field elev 1,636 ft
Density Altitude at Fairmont State (KFMZ)
Fairmont State sits at 1,636 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 3,796 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 | 23.8 | −351 ft | 34.5 | 397 ft |
| February | 27.9 | −62 ft | 39.4 | 733 ft |
| March | 39.1 | 712 ft | 51.6 | 1,551 ft |
| April | 49.7 | 1,425 ft | 62.7 | 2,275 ft |
| May | 61.1 | 2,172 ft | 73.2 | 2,943 ft |
| June | 71.5 | 2,836 ft | 83.8 | 3,601 ft |
| July | 75.4 | 3,081 ft | 87.0 | 3,796 ft |
| August | 73.1 | 2,937 ft | 84.8 | 3,662 ft |
| September | 65.3 | 2,442 ft | 78.7 | 3,286 ft |
| October | 52.3 | 1,597 ft | 65.4 | 2,448 ft |
| November | 38.4 | 664 ft | 50.6 | 1,485 ft |
| December | 27.7 | −76 ft | 38.2 | 651 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 KFMZ
DENSITY ALTITUDE
Field elevation 1,636 ft — the air behaves like 3,796 ft.
- PRESSURE ALT
- 1,637 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 Nebraska fields
- KJYR — York Municipal
York · elev 1,670 ft
- 08K — Harvard State
Harvard · elev 1,815 ft
- KHJH — Hebron Municipal
Hebron · elev 1,468 ft
- KAUH — Aurora Municipal/Al Potter Field
Aurora · elev 1,803 ft
- KSWT — Seward Municipal
Seward · elev 1,506 ft
- KCEK — Crete Municipal
Crete · elev 1,500 ft
- KFBY — Fairbury Municipal
Fairbury · elev 1,479 ft
- 07K — Central City Municipal/Larry Reineke Field
Central City · elev 1,717 ft
Frequently asked questions
How high does density altitude get at KFMZ in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Fairmont State reaches roughly 3,796 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 KFMZ on an average day?
It swings with the seasons: from roughly −351 ft at the coldest month's average temperature to about 3,081 ft at the warmest month's — all from a constant field elevation of 1,636 ft. The month-by-month table above carries the full year.
What is the field elevation of Fairmont State?
1,636 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFMZ (ICAO) / FMZ (FAA), in Fairmont, Nebraska.