Sidney, New York · field elev 1,027 ft
Density Altitude at Sidney Municipal (N23)
Sidney Municipal sits at 1,027 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,722 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 | 21.5 | −1,278 ft | 31.6 | −564 ft |
| February | 22.8 | −1,185 ft | 34.1 | −390 ft |
| March | 30.9 | −613 ft | 42.6 | 193 ft |
| April | 44.0 | 288 ft | 56.6 | 1,128 ft |
| May | 55.8 | 1,076 ft | 69.4 | 1,956 ft |
| June | 64.4 | 1,636 ft | 76.9 | 2,430 ft |
| July | 69.1 | 1,937 ft | 81.6 | 2,722 ft |
| August | 67.0 | 1,803 ft | 79.3 | 2,580 ft |
| September | 60.3 | 1,370 ft | 72.9 | 2,178 ft |
| October | 48.5 | 591 ft | 59.7 | 1,331 ft |
| November | 37.4 | −162 ft | 47.3 | 511 ft |
| December | 28.1 | −809 ft | 36.6 | −217 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 N23
DENSITY ALTITUDE
Field elevation 1,027 ft — the air behaves like 2,747 ft.
- PRESSURE ALT
- 1,028 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
- 4N7 — Greene
Greene · elev 935 ft
- KOIC — Lt Warren Eaton
Norwich · elev 1,024 ft
- N66 — Albert S Nader Regional
Oneonta · elev 1,763 ft
- KBGM — Greater Binghamton/Edwin A Link Field
Binghamton · elev 1,636 ft
- K23 — Cooperstown-Westville
Cooperstown · elev 1,260 ft
- KCZG — Tri-Cities
Endicott · elev 833 ft
- KVGC — Hamilton Municipal
Hamilton · elev 1,137 ft
- N03 — Cortland County/Chase Field
Cortland · elev 1,197 ft
Frequently asked questions
How high does density altitude get at N23 in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Sidney Municipal reaches roughly 2,722 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 N23 on an average day?
It swings with the seasons: from roughly −1,278 ft at the coldest month's average temperature to about 1,937 ft at the warmest month's — all from a constant field elevation of 1,027 ft. The month-by-month table above carries the full year.
What is the field elevation of Sidney Municipal?
1,027 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is N23 (FAA), in Sidney, New York.