Fairbury, Nebraska · field elev 1,479 ft
Density Altitude at Fairbury Municipal (KFBY)
Fairbury Municipal sits at 1,479 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 3,690 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 | 25.1 | −455 ft | 36.1 | 311 ft |
| February | 29.4 | −153 ft | 41.1 | 653 ft |
| March | 40.3 | 599 ft | 53.1 | 1,456 ft |
| April | 50.7 | 1,297 ft | 63.8 | 2,153 ft |
| May | 61.5 | 2,005 ft | 73.6 | 2,776 ft |
| June | 71.9 | 2,669 ft | 83.8 | 3,409 ft |
| July | 76.6 | 2,964 ft | 88.4 | 3,690 ft |
| August | 74.5 | 2,832 ft | 86.4 | 3,568 ft |
| September | 66.4 | 2,320 ft | 79.5 | 3,144 ft |
| October | 53.6 | 1,489 ft | 66.9 | 2,352 ft |
| November | 39.8 | 565 ft | 52.0 | 1,384 ft |
| December | 29.0 | −181 ft | 39.8 | 565 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 KFBY
DENSITY ALTITUDE
Field elevation 1,479 ft — the air behaves like 3,666 ft.
- PRESSURE ALT
- 1,480 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
- KHJH — Hebron Municipal
Hebron · elev 1,468 ft
- KBIE — Beatrice Municipal
Beatrice · elev 1,324 ft
- KCEK — Crete Municipal
Crete · elev 1,500 ft
- KFMZ — Fairmont State
Fairmont · elev 1,636 ft
- KSWT — Seward Municipal
Seward · elev 1,506 ft
- 12K — Superior Municipal
Superior · elev 1,692 ft
- KLNK — Lincoln
Lincoln · elev 1,219 ft
- 50K — Pawnee City Municipal
Pawnee City · elev 1,260 ft
Frequently asked questions
How high does density altitude get at KFBY in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Fairbury Municipal reaches roughly 3,690 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 KFBY on an average day?
It swings with the seasons: from roughly −455 ft at the coldest month's average temperature to about 2,964 ft at the warmest month's — all from a constant field elevation of 1,479 ft. The month-by-month table above carries the full year.
What is the field elevation of Fairbury Municipal?
1,479 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFBY (ICAO) / FBY (FAA), in Fairbury, Nebraska.