Potsdam, New York · field elev 474 ft
Density Altitude at Potsdam Municipal/Damon Field (KPTD)
Potsdam Municipal/Damon Field sits at 474 ft, and even a typical July afternoon (80 °F) only lifts density altitude to about 1,929 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 | 16.0 | −2,371 ft | 25.9 | −1,657 ft |
| February | 18.6 | −2,182 ft | 28.5 | −1,473 ft |
| March | 27.8 | −1,523 ft | 37.5 | −844 ft |
| April | 42.1 | −528 ft | 52.6 | 180 ft |
| May | 55.4 | 366 ft | 66.8 | 1,110 ft |
| June | 64.7 | 975 ft | 75.4 | 1,659 ft |
| July | 69.0 | 1,252 ft | 79.7 | 1,929 ft |
| August | 67.5 | 1,155 ft | 78.3 | 1,841 ft |
| September | 59.5 | 636 ft | 70.7 | 1,360 ft |
| October | 47.6 | −155 ft | 57.0 | 472 ft |
| November | 35.6 | −976 ft | 43.9 | −405 ft |
| December | 23.8 | −1,807 ft | 32.0 | −1,227 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 KPTD
DENSITY ALTITUDE
Field elevation 474 ft — the air behaves like 1,947 ft.
- PRESSURE ALT
- 475 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
- KMSS — Massena International-Richards Field
Massena · elev 222 ft
- 1E8 — Degrasse Moores
Degrasse · elev 815 ft
- KOGS — Ogdensburg International
Ogdensburg · elev 302 ft
- KMAL — Malone-Dufort
Malone · elev 790 ft
- KSLK — Adirondack Regional
Saranac Lake · elev 1,663 ft
- KLKP — Lake Placid
Lake Placid · elev 1,747 ft
- 1I1 — Marcy Field
Keene · elev 985 ft
- KART — Watertown International
Watertown · elev 331 ft
Frequently asked questions
How high does density altitude get at KPTD in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Potsdam Municipal/Damon Field reaches roughly 1,929 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 KPTD on an average day?
It swings with the seasons: from roughly −2,371 ft at the coldest month's average temperature to about 1,252 ft at the warmest month's — all from a constant field elevation of 474 ft. The month-by-month table above carries the full year.
What is the field elevation of Potsdam Municipal/Damon Field?
474 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KPTD (ICAO) / PTD (FAA), in Potsdam, New York.