Sylva, North Carolina · field elev 2,857 ft
Density Altitude at Jackson County (24A)
From a field elevation of 2,857 ft, a typical July afternoon at Jackson County (85 °F) raises density altitude to about 5,177 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 37.1 | 2,093 ft | 48.5 | 2,855 ft |
| February | 40.5 | 2,323 ft | 52.8 | 3,137 ft |
| March | 47.4 | 2,783 ft | 60.8 | 3,654 ft |
| April | 55.9 | 3,339 ft | 70.3 | 4,255 ft |
| May | 63.8 | 3,845 ft | 77.0 | 4,671 ft |
| June | 70.5 | 4,267 ft | 82.4 | 5,002 ft ▲ |
| July | 74.0 | 4,485 ft | 85.3 | 5,177 ft ▲ |
| August | 73.0 | 4,423 ft | 84.3 | 5,117 ft ▲ |
| September | 67.5 | 4,079 ft | 79.1 | 4,800 ft |
| October | 56.9 | 3,403 ft | 70.0 | 4,236 ft |
| November | 46.4 | 2,716 ft | 59.9 | 3,596 ft |
| December | 39.9 | 2,282 ft | 51.1 | 3,026 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 24A
DENSITY ALTITUDE caution
Field elevation 2,857 ft — the air behaves like 5,159 ft.
- PRESSURE ALT
- 2,859 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 North Carolina fields
- 1A5 — Macon County
Franklin · elev 2,034 ft
- KRHP — Western Carolina Regional
Andrews · elev 1,699 ft
- KAVL — Asheville Regional
Asheville · elev 2,164 ft
- 0A7 — Hendersonville
Hendersonville · elev 2,084 ft
- KFQD — Rutherford County/Marchman Field
Rutherfordton · elev 1,077 ft
- 9A9 — Shiflet Field
Marion · elev 1,212 ft
- 7A8 — Avery County/Morrison Field
Spruce Pine · elev 2,745 ft
- KEHO — Shelby-Cleveland County Regional
Shelby · elev 847 ft
Frequently asked questions
How high does density altitude get at 24A in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Jackson County reaches roughly 5,177 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 24A on an average day?
It swings with the seasons: from roughly 2,093 ft at the coldest month's average temperature to about 4,485 ft at the warmest month's — all from a constant field elevation of 2,857 ft. The month-by-month table above carries the full year.
What is the field elevation of Jackson County?
2,857 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 24A (FAA), in Sylva, North Carolina.