Perry, Florida · field elev 44 ft
Density Altitude at Perry-Foley (KFPY)
Perry-Foley sits at 44 ft, and even a typical July afternoon (92 °F) only lifts density altitude to about 2,163 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 | 53.8 | −272 ft | 66.4 | 555 ft |
| February | 56.8 | −73 ft | 69.7 | 768 ft |
| March | 62.2 | 282 ft | 75.2 | 1,119 ft |
| April | 67.5 | 626 ft | 80.4 | 1,446 ft |
| May | 75.0 | 1,106 ft | 87.1 | 1,863 ft |
| June | 80.2 | 1,434 ft | 89.9 | 2,035 ft |
| July | 82.2 | 1,559 ft | 92.0 | 2,163 ft |
| August | 81.7 | 1,528 ft | 90.9 | 2,096 ft |
| September | 79.2 | 1,371 ft | 89.1 | 1,986 ft |
| October | 70.7 | 832 ft | 82.5 | 1,578 ft |
| November | 61.2 | 217 ft | 73.8 | 1,030 ft |
| December | 56.2 | −112 ft | 68.4 | 684 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 KFPY
DENSITY ALTITUDE
Field elevation 44 ft — the air behaves like 2,163 ft.
- PRESSURE ALT
- 45 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
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Frequently asked questions
How high does density altitude get at KFPY in summer?
On a typical July afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Perry-Foley reaches roughly 2,163 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 KFPY on an average day?
It swings with the seasons: from roughly −272 ft at the coldest month's average temperature to about 1,559 ft at the warmest month's — all from a constant field elevation of 44 ft. The month-by-month table above carries the full year.
What is the field elevation of Perry-Foley?
44 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFPY (ICAO) / FPY (FAA), in Perry, Florida.