Elizabethton, Tennessee · field elev 1,593 ft
Density Altitude at William B Greene Jr Regional (0A9)
William B Greene Jr Regional sits at 1,593 ft, and even a typical July afternoon (86 °F) only lifts density altitude to about 3,652 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 | 35.9 | 440 ft | 46.2 | 1,139 ft |
| February | 39.2 | 666 ft | 50.4 | 1,419 ft |
| March | 46.6 | 1,165 ft | 58.9 | 1,977 ft |
| April | 55.5 | 1,755 ft | 69.0 | 2,625 ft |
| May | 64.2 | 2,319 ft | 76.6 | 3,103 ft |
| June | 71.2 | 2,764 ft | 82.9 | 3,493 ft |
| July | 74.5 | 2,972 ft | 85.5 | 3,652 ft |
| August | 73.7 | 2,922 ft | 85.0 | 3,622 ft |
| September | 67.9 | 2,555 ft | 80.1 | 3,320 ft |
| October | 57.0 | 1,853 ft | 70.0 | 2,688 ft |
| November | 45.9 | 1,118 ft | 58.5 | 1,951 ft |
| December | 39.2 | 666 ft | 49.5 | 1,359 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 0A9
DENSITY ALTITUDE
Field elevation 1,593 ft — the air behaves like 3,683 ft.
- PRESSURE ALT
- 1,594 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 Tennessee fields
- 0A4 — Johnson City
Johnson City · elev 1,550 ft
- KTRI — Tri-Cities
Bristol/Johnson/Kingsport · elev 1,519 ft
- 6A4 — Johnson County
Mountain City · elev 2,241 ft
- KGCY — Greeneville Municipal
Greeneville · elev 1,608 ft
- KRVN — Hawkins County
Rogersville · elev 1,255 ft
- KMOR — Moore-Murrell
Morristown · elev 1,313 ft
- 3A2 — The New Tazewell/Wayne Coffey Municipal
Tazewell · elev 1,179 ft
- KGKT — Gatlinburg-Pigeon Forge
Sevierville · elev 1,014 ft
Frequently asked questions
How high does density altitude get at 0A9 in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at William B Greene Jr Regional reaches roughly 3,652 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 0A9 on an average day?
It swings with the seasons: from roughly 440 ft at the coldest month's average temperature to about 2,972 ft at the warmest month's — all from a constant field elevation of 1,593 ft. The month-by-month table above carries the full year.
What is the field elevation of William B Greene Jr Regional?
1,593 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 0A9 (FAA), in Elizabethton, Tennessee.