Duanesburg, New York · field elev 714 ft
Density Altitude at Duanesburg (4B1)
Duanesburg sits at 714 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,334 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 | 21.6 | −1,664 ft | 31.1 | −990 ft |
| February | 23.4 | −1,535 ft | 33.8 | −801 ft |
| March | 31.2 | −983 ft | 42.0 | −236 ft |
| April | 45.0 | −32 ft | 56.8 | 755 ft |
| May | 57.0 | 768 ft | 69.9 | 1,604 ft |
| June | 65.2 | 1,302 ft | 76.9 | 2,047 ft |
| July | 70.1 | 1,617 ft | 81.5 | 2,334 ft |
| August | 67.7 | 1,463 ft | 79.7 | 2,222 ft |
| September | 61.1 | 1,037 ft | 73.7 | 1,845 ft |
| October | 48.2 | 183 ft | 58.7 | 880 ft |
| November | 37.9 | −517 ft | 47.8 | 156 ft |
| December | 27.4 | −1,250 ft | 35.9 | −656 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 4B1
DENSITY ALTITUDE
Field elevation 714 ft — the air behaves like 2,365 ft.
- PRESSURE ALT
- 715 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
- N25 — Blue Heron
Gallupville · elev 1,200 ft
- KSCH — Schenectady County
Schenectady · elev 378 ft
- KALB — Albany International
Albany · elev 285 ft
- NY0 — Fulton County
Johnstown · elev 881 ft
- 4B0 — South Albany
South Bethlehem · elev 196 ft
- W57 — Round Lake
Round Lake · elev 178 ft
- K31 — Sharon
Sharon Springs · elev 1,508 ft
- 1H4 — Greenville-Rainbow
Greenville · elev 840 ft
Frequently asked questions
How high does density altitude get at 4B1 in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Duanesburg reaches roughly 2,334 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 4B1 on an average day?
It swings with the seasons: from roughly −1,664 ft at the coldest month's average temperature to about 1,617 ft at the warmest month's — all from a constant field elevation of 714 ft. The month-by-month table above carries the full year.
What is the field elevation of Duanesburg?
714 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 4B1 (FAA), in Duanesburg, New York.