Frankfort, Kentucky · field elev 813 ft
Density Altitude at Capital City (KFFT)
Capital City sits at 813 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 2,831 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 | 34.1 | −657 ft | 43.1 | −38 ft |
| February | 37.8 | −401 ft | 47.6 | 266 ft |
| March | 46.2 | 171 ft | 57.2 | 904 ft |
| April | 56.7 | 871 ft | 68.5 | 1,636 ft |
| May | 65.5 | 1,443 ft | 76.7 | 2,155 ft |
| June | 73.7 | 1,967 ft | 84.7 | 2,653 ft |
| July | 77.2 | 2,187 ft | 87.6 | 2,831 ft |
| August | 76.1 | 2,118 ft | 87.1 | 2,800 ft |
| September | 69.2 | 1,681 ft | 81.1 | 2,430 ft |
| October | 57.6 | 930 ft | 69.5 | 1,700 ft |
| November | 46.1 | 165 ft | 56.7 | 871 ft |
| December | 38.1 | −380 ft | 46.8 | 212 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 KFFT
DENSITY ALTITUDE
Field elevation 813 ft — the air behaves like 2,855 ft.
- PRESSURE ALT
- 814 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 Kentucky fields
- KLEX — Blue Grass
Lexington · elev 980 ft
- 27K — Georgetown-Scott County Regional
Georgetown · elev 948 ft
- 8GK — Gallatin County
Sparta · elev 830 ft
- 0I8 — Cynthiana-Harrison County
Cynthiana · elev 721 ft
- KBRY — Samuels Field
Bardstown · elev 669 ft
- KLOU — Bowman Field
Louisville · elev 546 ft
- 6I2 — Lebanon Springfield/George Hoerter Field
Springfield · elev 871 ft
- KDVK — Stuart Powell Field
Danville · elev 1,021 ft
Frequently asked questions
How high does density altitude get at KFFT in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Capital City reaches roughly 2,831 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 KFFT on an average day?
It swings with the seasons: from roughly −657 ft at the coldest month's average temperature to about 2,187 ft at the warmest month's — all from a constant field elevation of 813 ft. The month-by-month table above carries the full year.
What is the field elevation of Capital City?
813 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFFT (ICAO) / FFT (FAA), in Frankfort, Kentucky.