Martinsburg, West Virginia · field elev 565 ft
Density Altitude at Eastern Wv Regional/Shepherd Field (KMRB)
Eastern Wv Regional/Shepherd Field sits at 565 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 2,486 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 | 32.4 | −1,085 ft | 41.3 | −469 ft |
| February | 35.0 | −904 ft | 44.7 | −238 ft |
| March | 42.8 | −367 ft | 53.5 | 353 ft |
| April | 53.6 | 359 ft | 65.4 | 1,132 ft |
| May | 62.5 | 944 ft | 74.0 | 1,682 ft |
| June | 71.1 | 1,497 ft | 82.4 | 2,208 ft |
| July | 75.7 | 1,789 ft | 86.9 | 2,486 ft |
| August | 73.8 | 1,669 ft | 85.0 | 2,369 ft |
| September | 66.7 | 1,216 ft | 78.1 | 1,940 ft |
| October | 55.2 | 465 ft | 66.7 | 1,216 ft |
| November | 44.6 | −245 ft | 55.1 | 459 ft |
| December | 36.0 | −834 ft | 44.8 | −231 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 KMRB
DENSITY ALTITUDE
Field elevation 565 ft — the air behaves like 2,492 ft.
- PRESSURE ALT
- 566 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 West Virginia fields
- W35 — Potomac Airpark
Berkeley Springs · elev 413 ft
- W99 — Grant County
Petersburg · elev 963 ft
- 70D — Titus Field
Arthurdale · elev 1,863 ft
- KMGW — Morgantown Municipal/Walter L Bill Hart Field
Morgantown · elev 1,244 ft
- KEKN — Elkins/Randolph County (Jennings Randolph Field)
Elkins · elev 1,987 ft
- 79D — Philippi/Barbour County Regional
Philippi · elev 1,755 ft
- 4G7 — Fairmont Municipal-Frankman Field
Fairmont · elev 1,032 ft
- KCKB — North Central West Virginia
Clarksburg · elev 1,224 ft
Frequently asked questions
How high does density altitude get at KMRB in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Eastern Wv Regional/Shepherd Field reaches roughly 2,486 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 KMRB on an average day?
It swings with the seasons: from roughly −1,085 ft at the coldest month's average temperature to about 1,789 ft at the warmest month's — all from a constant field elevation of 565 ft. The month-by-month table above carries the full year.
What is the field elevation of Eastern Wv Regional/Shepherd Field?
565 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMRB (ICAO) / MRB (FAA), in Martinsburg, West Virginia.