Blacksburg, Virginia · field elev 2,119 ft
Density Altitude at Virginia Tech/Montgomery Exec (KBCB)
Virginia Tech/Montgomery Exec sits at 2,119 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 4,097 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 | 31.9 | 819 ft | 41.6 | 1,482 ft |
| February | 34.7 | 1,012 ft | 45.3 | 1,730 ft |
| March | 41.7 | 1,488 ft | 53.2 | 2,253 ft |
| April | 51.4 | 2,135 ft | 63.9 | 2,946 ft |
| May | 60.2 | 2,708 ft | 71.9 | 3,452 ft |
| June | 67.9 | 3,200 ft | 78.9 | 3,888 ft |
| July | 71.7 | 3,440 ft | 82.3 | 4,097 ft |
| August | 70.4 | 3,358 ft | 81.2 | 4,030 ft |
| September | 64.3 | 2,971 ft | 75.8 | 3,696 ft |
| October | 53.2 | 2,253 ft | 65.6 | 3,054 ft |
| November | 42.7 | 1,556 ft | 54.8 | 2,358 ft |
| December | 35.1 | 1,040 ft | 44.9 | 1,703 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 KBCB
DENSITY ALTITUDE
Field elevation 2,119 ft — the air behaves like 4,079 ft.
- PRESSURE ALT
- 2,120 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
- KPSK — New River Valley
Dublin · elev 2,105 ft
- KROA — Roanoke/Blacksburg Regional (Woodrum Field)
Roanoke · elev 1,175 ft
- KHLX — Twin County
Galax Hillsville · elev 2,694 ft
- KMTV — Blue Ridge
Martinsville · elev 948 ft
- W91 — Smith Mountain Lake
Moneta · elev 892 ft
- KMKJ — Mountain Empire
Marion/Wytheville · elev 2,558 ft
- W90 — New London
Forest · elev 842 ft
- KHSP — Ingalls Field
Hot Springs · elev 3,792 ft
Frequently asked questions
How high does density altitude get at KBCB in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Virginia Tech/Montgomery Exec reaches roughly 4,097 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 KBCB on an average day?
It swings with the seasons: from roughly 819 ft at the coldest month's average temperature to about 3,440 ft at the warmest month's — all from a constant field elevation of 2,119 ft. The month-by-month table above carries the full year.
What is the field elevation of Virginia Tech/Montgomery Exec?
2,119 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KBCB (ICAO) / BCB (FAA), in Blacksburg, Virginia.