Marion/Wytheville, Virginia · field elev 2,558 ft
Density Altitude at Mountain Empire (KMKJ)
Mountain Empire sits at 2,558 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 4,662 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 | 32.9 | 1,435 ft | 42.2 | 2,066 ft |
| February | 35.7 | 1,627 ft | 45.9 | 2,313 ft |
| March | 42.6 | 2,093 ft | 54.0 | 2,847 ft |
| April | 51.9 | 2,709 ft | 64.5 | 3,523 ft |
| May | 60.5 | 3,267 ft | 72.5 | 4,027 ft |
| June | 68.0 | 3,745 ft | 79.3 | 4,448 ft |
| July | 71.7 | 3,977 ft | 82.8 | 4,662 ft |
| August | 70.6 | 3,908 ft | 81.8 | 4,601 ft |
| September | 64.6 | 3,529 ft | 76.5 | 4,275 ft |
| October | 53.7 | 2,827 ft | 66.6 | 3,656 ft |
| November | 43.2 | 2,133 ft | 55.5 | 2,944 ft |
| December | 36.2 | 1,661 ft | 45.8 | 2,307 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 KMKJ
DENSITY ALTITUDE
Field elevation 2,558 ft — the air behaves like 4,674 ft.
- PRESSURE ALT
- 2,560 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
- KJFZ — Tazewell County
Richlands · elev 2,653 ft
- KHLX — Twin County
Galax Hillsville · elev 2,694 ft
- KVJI — Virginia Highlands
Abingdon · elev 2,088 ft
- KPSK — New River Valley
Dublin · elev 2,105 ft
- KBCB — Virginia Tech/Montgomery Exec
Blacksburg · elev 2,119 ft
- KLNP — Lonesome Pine
Wise · elev 2,685 ft
- KMTV — Blue Ridge
Martinsville · elev 948 ft
- KROA — Roanoke/Blacksburg Regional (Woodrum Field)
Roanoke · elev 1,175 ft
Frequently asked questions
How high does density altitude get at KMKJ in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Mountain Empire reaches roughly 4,662 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 KMKJ on an average day?
It swings with the seasons: from roughly 1,435 ft at the coldest month's average temperature to about 3,977 ft at the warmest month's — all from a constant field elevation of 2,558 ft. The month-by-month table above carries the full year.
What is the field elevation of Mountain Empire?
2,558 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMKJ (ICAO) / MKJ (FAA), in Marion/Wytheville, Virginia.