East Hampton, New York · field elev 55 ft
Density Altitude at East Hampton Town (KJPX)
East Hampton Town sits at 55 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 1,472 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 | 30.7 | −1,842 ft | 38.5 | −1,297 ft |
| February | 31.6 | −1,779 ft | 39.7 | −1,214 ft |
| March | 37.7 | −1,353 ft | 45.7 | −803 ft |
| April | 46.7 | −736 ft | 55.3 | −159 ft |
| May | 56.2 | −99 ft | 65.1 | 485 ft |
| June | 65.8 | 530 ft | 74.5 | 1,088 ft |
| July | 72.0 | 929 ft | 80.6 | 1,472 ft |
| August | 70.9 | 859 ft | 79.5 | 1,404 ft |
| September | 64.2 | 426 ft | 72.8 | 980 ft |
| October | 53.7 | −265 ft | 62.6 | 322 ft |
| November | 44.3 | −899 ft | 52.6 | −338 ft |
| December | 36.1 | −1,464 ft | 44.0 | −919 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 KJPX
DENSITY ALTITUDE
Field elevation 55 ft — the air behaves like 1,497 ft.
- PRESSURE ALT
- 56 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 New York fields
- 21N — Mattituck
Mattituck · elev 30 ft
- KMTP — Montauk
Montauk · elev 7 ft
- KFOK — Francis S Gabreski
Westhampton Beach · elev 66 ft
- 0B8 — Elizabeth Field
Fishers Island · elev 7 ft
- KHWV — Brookhaven
Shirley · elev 81 ft
- 23N — Bayport Aerodrome
Bayport · elev 39 ft
- KISP — Long Island Mac Arthur
New York · elev 99 ft
- KFRG — Republic
Farmingdale · elev 82 ft
Frequently asked questions
How high does density altitude get at KJPX in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at East Hampton Town reaches roughly 1,472 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 KJPX on an average day?
It swings with the seasons: from roughly −1,842 ft at the coldest month's average temperature to about 929 ft at the warmest month's — all from a constant field elevation of 55 ft. The month-by-month table above carries the full year.
What is the field elevation of East Hampton Town?
55 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KJPX (ICAO) / JPX (FAA), in East Hampton, New York.