Vineyard Haven, Massachusetts · field elev 67 ft
Density Altitude at Martha'S Vineyard (KMVY)
Martha'S Vineyard sits at 67 ft, and even a typical July afternoon (79 °F) only lifts density altitude to about 1,393 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 | 31.4 | −1,778 ft | 39.3 | −1,227 ft |
| February | 31.9 | −1,743 ft | 40.4 | −1,151 ft |
| March | 37.1 | −1,379 ft | 45.5 | −802 ft |
| April | 45.7 | −789 ft | 55.2 | −150 ft |
| May | 55.4 | −137 ft | 65.0 | 493 ft |
| June | 63.7 | 409 ft | 72.8 | 995 ft |
| July | 70.2 | 828 ft | 79.1 | 1,393 ft |
| August | 69.3 | 771 ft | 78.8 | 1,374 ft |
| September | 62.5 | 330 ft | 72.8 | 995 ft |
| October | 53.3 | −277 ft | 63.2 | 376 ft |
| November | 44.9 | −843 ft | 53.7 | −250 ft |
| December | 37.0 | −1,386 ft | 45.2 | −823 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 KMVY
DENSITY ALTITUDE
Field elevation 67 ft — the air behaves like 1,387 ft.
- PRESSURE ALT
- 68 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 Massachusetts fields
- 1B2 — Katama Airpark
Edgartown · elev 18 ft
- 5B6 — Falmouth Airpark
Falmouth · elev 41 ft
- 2B1 — Cape Cod
Marston Mills · elev 103 ft
- KHYA — Cape Cod Gateway
Hyannis · elev 54 ft
- KEWB — New Bedford Regional
New Bedford · elev 79 ft
- KACK — Nantucket Meml
Nantucket · elev 47 ft
- KPYM — Plymouth Municipal
Plymouth · elev 148 ft
- 1M8 — Myricks
Berkley · elev 73 ft
Frequently asked questions
How high does density altitude get at KMVY in summer?
On a typical July afternoon — around 79 °F at the nearest NOAA normals station — density altitude at Martha'S Vineyard reaches roughly 1,393 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 KMVY on an average day?
It swings with the seasons: from roughly −1,778 ft at the coldest month's average temperature to about 828 ft at the warmest month's — all from a constant field elevation of 67 ft. The month-by-month table above carries the full year.
What is the field elevation of Martha'S Vineyard?
67 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMVY (ICAO) / MVY (FAA), in Vineyard Haven, Massachusetts.