Leesburg, Virginia · field elev 390 ft
Density Altitude at Leesburg Exec (KJYO)
Leesburg Exec sits at 390 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 2,291 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 | 33.4 | −1,234 ft | 41.9 | −646 ft |
| February | 35.7 | −1,074 ft | 45.3 | −414 ft |
| March | 43.4 | −544 ft | 53.8 | 156 ft |
| April | 54.5 | 203 ft | 66.0 | 955 ft |
| May | 63.8 | 813 ft | 74.3 | 1,486 ft |
| June | 72.6 | 1,378 ft | 82.7 | 2,013 ft |
| July | 77.2 | 1,669 ft | 87.2 | 2,291 ft |
| August | 75.7 | 1,575 ft | 85.9 | 2,211 ft |
| September | 68.5 | 1,116 ft | 79.2 | 1,795 ft |
| October | 56.6 | 342 ft | 67.7 | 1,065 ft |
| November | 45.6 | −394 ft | 56.0 | 302 ft |
| December | 37.4 | −956 ft | 46.1 | −360 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 KJYO
DENSITY ALTITUDE
Field elevation 390 ft — the air behaves like 2,279 ft.
- PRESSURE ALT
- 391 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
- KOKV — Winchester Regional
Winchester · elev 726 ft
- KHWY — Warrenton/Fauquier
Warrenton · elev 336 ft
- KFRR — Front Royal-Warren County
Front Royal · elev 704 ft
- KCJR — Culpeper Regional
Culpeper · elev 316 ft
- KRMN — Washington Exec/Stafford Regional
Stafford · elev 219 ft
- KEZF — Shannon
Fredericksburg · elev 85 ft
- KLUA — Luray Caverns
Luray · elev 902 ft
- KOMH — Orange County
Orange · elev 464 ft
Frequently asked questions
How high does density altitude get at KJYO in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Leesburg Exec reaches roughly 2,291 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 KJYO on an average day?
It swings with the seasons: from roughly −1,234 ft at the coldest month's average temperature to about 1,669 ft at the warmest month's — all from a constant field elevation of 390 ft. The month-by-month table above carries the full year.
What is the field elevation of Leesburg Exec?
390 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KJYO (ICAO) / JYO (FAA), in Leesburg, Virginia.