Jefferson, North Carolina · field elev 3,178 ft
Density Altitude at Ashe County (KGEV)
From a field elevation of 3,178 ft, a typical July afternoon at Ashe County (81 °F) raises density altitude to about 5,307 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 | 32.6 | 2,186 ft | 43.3 | 2,908 ft |
| February | 35.3 | 2,370 ft | 46.6 | 3,126 ft |
| March | 41.4 | 2,781 ft | 53.5 | 3,578 ft |
| April | 49.7 | 3,330 ft | 63.1 | 4,194 ft |
| May | 58.2 | 3,882 ft | 71.2 | 4,704 ft |
| June | 65.7 | 4,359 ft | 78.0 | 5,124 ft ▲ |
| July | 69.5 | 4,598 ft | 81.0 | 5,307 ft ▲ |
| August | 68.4 | 4,529 ft | 80.2 | 5,258 ft ▲ |
| September | 62.7 | 4,169 ft | 75.2 | 4,951 ft |
| October | 52.0 | 3,481 ft | 65.5 | 4,346 ft |
| November | 42.0 | 2,821 ft | 55.4 | 3,701 ft |
| December | 35.7 | 2,397 ft | 47.0 | 3,153 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 KGEV
DENSITY ALTITUDE caution
Field elevation 3,178 ft — the air behaves like 5,307 ft.
- PRESSURE ALT
- 3,180 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
- KUKF — Wilkes County
North Wilkesboro · elev 1,303 ft
- 78A — Swan Creek
Jonesville · elev 1,137 ft
- KZEF — Elkin Municipal
Elkin · elev 1,067 ft
- NC2 — Taylorsville
Taylorsville · elev 1,090 ft
- KMRN — Foothills Regional
Morganton · elev 1,270 ft
- 7A8 — Avery County/Morrison Field
Spruce Pine · elev 2,745 ft
- KHKY — Hickory Regional
Hickory · elev 1,190 ft
- 80C — Lone Hickory
Yadkinville · elev 1,015 ft
Frequently asked questions
How high does density altitude get at KGEV in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Ashe County reaches roughly 5,307 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 KGEV on an average day?
It swings with the seasons: from roughly 2,186 ft at the coldest month's average temperature to about 4,598 ft at the warmest month's — all from a constant field elevation of 3,178 ft. The month-by-month table above carries the full year.
What is the field elevation of Ashe County?
3,178 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KGEV (ICAO) / GEV (FAA), in Jefferson, North Carolina.