Flora, Illinois · field elev 473 ft
Density Altitude at Flora Municipal (KFOA)
Flora Municipal sits at 473 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 2,502 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 | 30.0 | −1,369 ft | 38.8 | −756 ft |
| February | 34.5 | −1,053 ft | 44.2 | −386 ft |
| March | 43.8 | −413 ft | 54.5 | 305 ft |
| April | 55.3 | 358 ft | 67.1 | 1,128 ft |
| May | 65.5 | 1,025 ft | 76.8 | 1,746 ft |
| June | 74.7 | 1,613 ft | 86.0 | 2,318 ft |
| July | 77.4 | 1,783 ft | 89.0 | 2,502 ft |
| August | 75.6 | 1,670 ft | 87.8 | 2,429 ft |
| September | 68.5 | 1,218 ft | 81.6 | 2,046 ft |
| October | 56.6 | 444 ft | 69.0 | 1,250 ft |
| November | 44.2 | −386 ft | 54.8 | 325 ft |
| December | 34.5 | −1,053 ft | 43.2 | −454 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 KFOA
DENSITY ALTITUDE
Field elevation 473 ft — the air behaves like 2,502 ft.
- PRESSURE ALT
- 474 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 Illinois fields
- KOLY — Olney-Noble
Olney-Noble · elev 482 ft
- KFWC — Fairfield Municipal
Fairfield · elev 434 ft
- 2T2 — Percival Springs
Watson · elev 552 ft
- KSLO — Salem-Leckrone
Salem · elev 573 ft
- 1H2 — Effingham County Regional
Effingham · elev 585 ft
- KMVN — Mount Vernon
Mount Vernon · elev 480 ft
- KENL — Centralia Municipal
Centralia · elev 534 ft
- KAJG — Mount Carmel Municipal
Mount Carmel · elev 429 ft
Frequently asked questions
How high does density altitude get at KFOA in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Flora Municipal reaches roughly 2,502 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 KFOA on an average day?
It swings with the seasons: from roughly −1,369 ft at the coldest month's average temperature to about 1,783 ft at the warmest month's — all from a constant field elevation of 473 ft. The month-by-month table above carries the full year.
What is the field elevation of Flora Municipal?
473 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFOA (ICAO) / FOA (FAA), in Flora, Illinois.