Fort Myers, Florida · field elev 17 ft
Density Altitude at Page Field (KFMY)
Page Field sits at 17 ft, and even a typical August afternoon (92 °F) only lifts density altitude to about 2,112 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 | 64.7 | 412 ft | 75.0 | 1,073 ft |
| February | 67.3 | 580 ft | 78.0 | 1,263 ft |
| March | 70.3 | 773 ft | 81.1 | 1,457 ft |
| April | 74.8 | 1,060 ft | 85.3 | 1,719 ft |
| May | 79.3 | 1,344 ft | 89.5 | 1,978 ft |
| June | 82.3 | 1,532 ft | 91.0 | 2,069 ft |
| July | 83.2 | 1,588 ft | 91.6 | 2,106 ft |
| August | 83.4 | 1,601 ft | 91.7 | 2,112 ft |
| September | 82.2 | 1,526 ft | 90.0 | 2,008 ft |
| October | 78.0 | 1,263 ft | 86.6 | 1,799 ft |
| November | 71.5 | 850 ft | 81.3 | 1,470 ft |
| December | 67.3 | 580 ft | 77.3 | 1,219 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 KFMY
DENSITY ALTITUDE
Field elevation 17 ft — the air behaves like 2,131 ft.
- PRESSURE ALT
- 18 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 Florida fields
- KRSW — Southwest Florida International
Fort Myers · elev 30 ft
- KPGD — Punta Gorda
Punta Gorda · elev 26 ft
- F13 — Shell Creek Airpark
Punta Gorda · elev 20 ft
- X14 — La Belle Municipal
La Belle · elev 20 ft
- KIMM — Immokalee Regional
Immokalee · elev 37 ft
- KAPF — Naples Municipal
Naples · elev 8 ft
- X06 — Arcadia Municipal
Arcadia · elev 63 ft
- X36 — Buchan
Englewood · elev 15 ft
Frequently asked questions
How high does density altitude get at KFMY in summer?
On a typical August afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Page Field reaches roughly 2,112 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 KFMY on an average day?
It swings with the seasons: from roughly 412 ft at the coldest month's average temperature to about 1,601 ft at the warmest month's — all from a constant field elevation of 17 ft. The month-by-month table above carries the full year.
What is the field elevation of Page Field?
17 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFMY (ICAO) / FMY (FAA), in Fort Myers, Florida.