Franklin, Virginia · field elev 40 ft
Density Altitude at Franklin Regional (KFKN)
Franklin Regional sits at 40 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 1,969 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 | 39.7 | −1,233 ft | 50.1 | −525 ft |
| February | 42.3 | −1,054 ft | 53.0 | −330 ft |
| March | 49.2 | −585 ft | 60.4 | 160 ft |
| April | 58.4 | 28 ft | 70.3 | 802 ft |
| May | 66.8 | 576 ft | 77.6 | 1,266 ft |
| June | 74.7 | 1,082 ft | 85.3 | 1,747 ft |
| July | 78.8 | 1,341 ft | 88.9 | 1,969 ft |
| August | 76.9 | 1,221 ft | 87.2 | 1,864 ft |
| September | 71.5 | 878 ft | 81.9 | 1,535 ft |
| October | 60.8 | 186 ft | 72.4 | 936 ft |
| November | 50.6 | −491 ft | 62.2 | 277 ft |
| December | 43.4 | −979 ft | 53.9 | −270 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 KFKN
DENSITY ALTITUDE
Field elevation 40 ft — the air behaves like 1,975 ft.
- PRESSURE ALT
- 41 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 Virginia fields
- KSFQ — Suffolk Exec
Suffolk · elev 70 ft
- KAKQ — Wakefield Municipal
Wakefield · elev 111 ft
- KPVG — Hampton Roads Exec
Norfolk · elev 28 ft
- KEMV — Emporia-Greensville Regional
Emporia · elev 127 ft
- KCPK — Chesapeake Regional
Norfolk · elev 19 ft
- KPHF — Newport News/Williamsburg International
Newport News · elev 42 ft
- KJGG — Waltrip Williamsburg Exec Airport
Williamsburg · elev 49 ft
- KORF — Norfolk International
Norfolk · elev 26 ft
Frequently asked questions
How high does density altitude get at KFKN in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Franklin Regional reaches roughly 1,969 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 KFKN on an average day?
It swings with the seasons: from roughly −1,233 ft at the coldest month's average temperature to about 1,341 ft at the warmest month's — all from a constant field elevation of 40 ft. The month-by-month table above carries the full year.
What is the field elevation of Franklin Regional?
40 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFKN (ICAO) / FKN (FAA), in Franklin, Virginia.