Fulton, New York · field elev 475 ft
Density Altitude at Oswego County (KFZY)
Oswego County sits at 475 ft, and even a typical July afternoon (80 °F) only lifts density altitude to about 1,967 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 | 23.2 | −1,849 ft | 30.5 | −1,331 ft |
| February | 24.9 | −1,727 ft | 32.6 | −1,184 ft |
| March | 32.6 | −1,184 ft | 40.7 | −623 ft |
| April | 44.8 | −343 ft | 54.6 | 314 ft |
| May | 56.7 | 453 ft | 67.6 | 1,163 ft |
| June | 65.1 | 1,002 ft | 75.8 | 1,685 ft |
| July | 70.0 | 1,317 ft | 80.3 | 1,967 ft |
| August | 68.6 | 1,227 ft | 78.7 | 1,867 ft |
| September | 61.5 | 768 ft | 71.7 | 1,425 ft |
| October | 50.5 | 41 ft | 59.3 | 624 ft |
| November | 39.7 | −691 ft | 47.1 | −187 ft |
| December | 29.7 | −1,387 ft | 36.1 | −940 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 KFZY
DENSITY ALTITUDE
Field elevation 475 ft — the air behaves like 1,949 ft.
- PRESSURE ALT
- 476 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
- 1H1 — Airlane Enterprises
Clay · elev 385 ft
- B16 — Whitfords
Weedsport · elev 400 ft
- KSYR — Syracuse Hancock International
Syracuse · elev 421 ft
- 6B9 — Skaneateles Aero Drome
Skaneateles · elev 1,039 ft
- KSDC — Williamson/Sodus
Williamson/Sodus · elev 424 ft
- 0G7 — Finger Lakes Regional
Seneca Falls · elev 492 ft
- K16 — Becks Grove
Rome · elev 450 ft
- KART — Watertown International
Watertown · elev 331 ft
Frequently asked questions
How high does density altitude get at KFZY in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Oswego County reaches roughly 1,967 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 KFZY on an average day?
It swings with the seasons: from roughly −1,849 ft at the coldest month's average temperature to about 1,317 ft at the warmest month's — all from a constant field elevation of 475 ft. The month-by-month table above carries the full year.
What is the field elevation of Oswego County?
475 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFZY (ICAO) / FZY (FAA), in Fulton, New York.