Roanoke, Virginia · field elev 1,175 ft
Density Altitude at Roanoke/Blacksburg Regional (Woodrum Field) (KROA)
Roanoke/Blacksburg Regional (Woodrum Field) sits at 1,175 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 3,302 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 | 37.9 | 57 ft | 47.1 | 681 ft |
| February | 40.8 | 255 ft | 50.8 | 928 ft |
| March | 48.3 | 761 ft | 59.0 | 1,468 ft |
| April | 58.0 | 1,403 ft | 69.7 | 2,157 ft |
| May | 66.1 | 1,927 ft | 77.2 | 2,629 ft |
| June | 73.8 | 2,416 ft | 84.4 | 3,076 ft |
| July | 77.8 | 2,667 ft | 88.1 | 3,302 ft |
| August | 76.2 | 2,567 ft | 86.5 | 3,204 ft |
| September | 69.6 | 2,150 ft | 80.0 | 2,804 ft |
| October | 58.9 | 1,461 ft | 70.1 | 2,182 ft |
| November | 48.4 | 768 ft | 59.0 | 1,468 ft |
| December | 40.9 | 262 ft | 50.0 | 875 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 KROA
DENSITY ALTITUDE
Field elevation 1,175 ft — the air behaves like 3,296 ft.
- PRESSURE ALT
- 1,176 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
- KBCB — Virginia Tech/Montgomery Exec
Blacksburg · elev 2,119 ft
- W91 — Smith Mountain Lake
Moneta · elev 892 ft
- W90 — New London
Forest · elev 842 ft
- KPSK — New River Valley
Dublin · elev 2,105 ft
- KLYH — Lynchburg Regional/Preston Glenn Field
Lynchburg · elev 938 ft
- KHSP — Ingalls Field
Hot Springs · elev 3,792 ft
- W24 — Falwell
Lynchburg · elev 939 ft
- KMTV — Blue Ridge
Martinsville · elev 948 ft
Frequently asked questions
How high does density altitude get at KROA in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Roanoke/Blacksburg Regional (Woodrum Field) reaches roughly 3,302 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 KROA on an average day?
It swings with the seasons: from roughly 57 ft at the coldest month's average temperature to about 2,667 ft at the warmest month's — all from a constant field elevation of 1,175 ft. The month-by-month table above carries the full year.
What is the field elevation of Roanoke/Blacksburg Regional (Woodrum Field)?
1,175 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KROA (ICAO) / ROA (FAA), in Roanoke, Virginia.