Clay, New York · field elev 385 ft
Density Altitude at Airlane Enterprises (1H1)
Airlane Enterprises sits at 385 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 1,888 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 | 21.8 | −2,063 ft | 30.9 | −1,415 ft |
| February | 22.6 | −2,005 ft | 33.0 | −1,268 ft |
| March | 31.3 | −1,387 ft | 41.3 | −693 ft |
| April | 43.9 | −516 ft | 55.1 | 236 ft |
| May | 56.3 | 316 ft | 68.0 | 1,078 ft |
| June | 64.8 | 872 ft | 75.9 | 1,581 ft |
| July | 69.5 | 1,174 ft | 80.8 | 1,888 ft |
| August | 68.1 | 1,084 ft | 79.5 | 1,807 ft |
| September | 60.6 | 598 ft | 72.4 | 1,359 ft |
| October | 49.6 | −130 ft | 59.4 | 520 ft |
| November | 39.2 | −838 ft | 48.0 | −238 ft |
| December | 29.2 | −1,535 ft | 36.8 | −1,003 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 1H1
DENSITY ALTITUDE
Field elevation 385 ft — the air behaves like 1,901 ft.
- PRESSURE ALT
- 386 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
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- KVGC — Hamilton Municipal
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Frequently asked questions
How high does density altitude get at 1H1 in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Airlane Enterprises reaches roughly 1,888 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 1H1 on an average day?
It swings with the seasons: from roughly −2,063 ft at the coldest month's average temperature to about 1,174 ft at the warmest month's — all from a constant field elevation of 385 ft. The month-by-month table above carries the full year.
What is the field elevation of Airlane Enterprises?
385 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 1H1 (FAA), in Clay, New York.