Berkeley Springs, West Virginia · field elev 413 ft
Density Altitude at Potomac Airpark (W35)
Potomac Airpark sits at 413 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 2,319 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 | 32.3 | −1,282 ft | 41.6 | −638 ft |
| February | 34.3 | −1,142 ft | 45.2 | −393 ft |
| March | 41.8 | −624 ft | 53.5 | 165 ft |
| April | 52.7 | 112 ft | 65.5 | 951 ft |
| May | 62.9 | 783 ft | 74.9 | 1,552 ft |
| June | 71.3 | 1,324 ft | 83.1 | 2,066 ft |
| July | 75.6 | 1,596 ft | 87.2 | 2,319 ft |
| August | 73.8 | 1,483 ft | 85.7 | 2,227 ft |
| September | 66.8 | 1,035 ft | 79.2 | 1,823 ft |
| October | 55.2 | 278 ft | 67.4 | 1,074 ft |
| November | 44.3 | −454 ft | 55.6 | 304 ft |
| December | 35.9 | −1,031 ft | 45.1 | −399 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 W35
DENSITY ALTITUDE
Field elevation 413 ft — the air behaves like 2,307 ft.
- PRESSURE ALT
- 414 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
- KMRB — Eastern Wv Regional/Shepherd Field
Martinsburg · elev 565 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 W35 in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Potomac Airpark reaches roughly 2,319 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 W35 on an average day?
It swings with the seasons: from roughly −1,282 ft at the coldest month's average temperature to about 1,596 ft at the warmest month's — all from a constant field elevation of 413 ft. The month-by-month table above carries the full year.
What is the field elevation of Potomac Airpark?
413 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is W35 (FAA), in Berkeley Springs, West Virginia.