Chappell, Nebraska · field elev 3,682 ft
Density Altitude at Billy G Ray Field (KCNP)
From a field elevation of 3,682 ft, a typical July afternoon at Billy G Ray Field (87 °F) raises density altitude to about 6,305 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 26.5 | 2,394 ft | 39.5 | 3,278 ft |
| February | 28.6 | 2,539 ft | 41.4 | 3,405 ft |
| March | 38.0 | 3,178 ft | 51.7 | 4,082 ft |
| April | 46.5 | 3,742 ft | 60.2 | 4,628 ft |
| May | 56.7 | 4,405 ft | 70.0 | 5,245 ft ▲ |
| June | 67.3 | 5,076 ft | 81.2 | 5,932 ft ▲ |
| July | 73.8 | 5,480 ft | 87.4 | 6,305 ft ▲ |
| August | 71.5 | 5,338 ft | 85.3 | 6,179 ft ▲ |
| September | 62.3 | 4,762 ft | 76.9 | 5,670 ft ▲ |
| October | 48.6 | 3,880 ft | 63.1 | 4,812 ft |
| November | 36.3 | 3,063 ft | 50.2 | 3,985 ft |
| December | 26.9 | 2,422 ft | 39.8 | 3,298 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 KCNP
DENSITY ALTITUDE caution
Field elevation 3,682 ft — the air behaves like 6,281 ft.
- PRESSURE ALT
- 3,684 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 Nebraska fields
- KOKS — Garden County/King Rhiley Field
Oshkosh · elev 3,394 ft
- KSNY — Sidney Municipal/Lloyd W Carr Field
Sidney · elev 4,314 ft
- KOGA — Searle Field
Ogallala · elev 3,279 ft
- KGGF — Grant Municipal
Grant · elev 3,425 ft
- KIML — Imperial Municipal
Imperial · elev 3,276 ft
- KIBM — Kimball Municipal/Robert E Arraj Field
Kimball · elev 4,926 ft
- KAIA — Alliance Municipal
Alliance · elev 3,931 ft
- 64V — Wallace Municipal
Wallace · elev 3,101 ft
Frequently asked questions
How high does density altitude get at KCNP in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Billy G Ray Field reaches roughly 6,305 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 KCNP on an average day?
It swings with the seasons: from roughly 2,394 ft at the coldest month's average temperature to about 5,480 ft at the warmest month's — all from a constant field elevation of 3,682 ft. The month-by-month table above carries the full year.
What is the field elevation of Billy G Ray Field?
3,682 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KCNP (ICAO) / CNP (FAA), in Chappell, Nebraska.