Blackstone, Virginia · field elev 437 ft
Density Altitude at Allan C Perkinson/Blackstone Aaf (KBKT)
Allan C Perkinson/Blackstone Aaf sits at 437 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 2,379 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 | 37.4 | −897 ft | 48.2 | −160 ft |
| February | 40.0 | −718 ft | 51.9 | 88 ft |
| March | 47.1 | −234 ft | 59.2 | 571 ft |
| April | 56.9 | 420 ft | 69.8 | 1,257 ft |
| May | 65.5 | 981 ft | 76.7 | 1,695 ft |
| June | 73.6 | 1,499 ft | 84.1 | 2,157 ft |
| July | 77.8 | 1,764 ft | 87.7 | 2,379 ft |
| August | 76.0 | 1,651 ft | 85.9 | 2,268 ft |
| September | 69.8 | 1,257 ft | 80.4 | 1,927 ft |
| October | 58.5 | 525 ft | 70.4 | 1,296 ft |
| November | 48.1 | −167 ft | 60.4 | 649 ft |
| December | 40.6 | −677 ft | 51.6 | 68 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 KBKT
DENSITY ALTITUDE
Field elevation 437 ft — the air behaves like 2,397 ft.
- PRESSURE ALT
- 438 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
- W81 — Crewe Municipal
Crewe · elev 422 ft
- W31 — Lunenburg County
Kenbridge · elev 526 ft
- KLVL — Brunswick County
Lawrenceville · elev 329 ft
- KPTB — Tri Cities Exec/Dinwiddie County
Petersburg · elev 193 ft
- KAVC — Mecklenburg-Brunswick Regional
South Hill · elev 441 ft
- KFCI — Richmond Exec/Chesterfield County
Richmond · elev 236 ft
- KFVX — Farmville Regional
Farmville · elev 416 ft
- KCXE — Chase City Municipal
Chase City · elev 503 ft
Frequently asked questions
How high does density altitude get at KBKT in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Allan C Perkinson/Blackstone Aaf reaches roughly 2,379 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 KBKT on an average day?
It swings with the seasons: from roughly −897 ft at the coldest month's average temperature to about 1,764 ft at the warmest month's — all from a constant field elevation of 437 ft. The month-by-month table above carries the full year.
What is the field elevation of Allan C Perkinson/Blackstone Aaf?
437 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KBKT (ICAO) / BKT (FAA), in Blackstone, Virginia.