Oshkosh, Nebraska · field elev 3,394 ft
Density Altitude at Garden County/King Rhiley Field (KOKS)
From a field elevation of 3,394 ft, a typical July afternoon at Garden County/King Rhiley Field (88 °F) raises density altitude to about 6,010 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 | 26.1 | 2,007 ft | 39.7 | 2,935 ft |
| February | 29.3 | 2,228 ft | 43.2 | 3,168 ft |
| March | 38.7 | 2,868 ft | 53.4 | 3,838 ft |
| April | 46.7 | 3,400 ft | 61.1 | 4,332 ft |
| May | 56.9 | 4,064 ft | 70.3 | 4,911 ft |
| June | 68.1 | 4,774 ft | 82.1 | 5,636 ft ▲ |
| July | 74.3 | 5,159 ft | 88.3 | 6,010 ft ▲ |
| August | 72.1 | 5,023 ft | 86.4 | 5,896 ft ▲ |
| September | 63.2 | 4,466 ft | 78.7 | 5,430 ft ▲ |
| October | 48.9 | 3,544 ft | 64.4 | 4,541 ft |
| November | 36.5 | 2,719 ft | 51.4 | 3,708 ft |
| December | 26.8 | 2,056 ft | 40.6 | 2,995 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 KOKS
DENSITY ALTITUDE caution
Field elevation 3,394 ft — the air behaves like 5,992 ft.
- PRESSURE ALT
- 3,396 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
- KCNP — Billy G Ray Field
Chappell · elev 3,682 ft
- KOGA — Searle Field
Ogallala · elev 3,279 ft
- KSNY — Sidney Municipal/Lloyd W Carr Field
Sidney · elev 4,314 ft
- KGGF — Grant Municipal
Grant · elev 3,425 ft
- KAIA — Alliance Municipal
Alliance · elev 3,931 ft
- 1V2 — Grant County
Hyannis · elev 3,737 ft
- KIBM — Kimball Municipal/Robert E Arraj Field
Kimball · elev 4,926 ft
- KBFF — Scottsbluff/Western Nebraska Regional/Wm B Heilig Field
Scottsbluff · elev 3,967 ft
Frequently asked questions
How high does density altitude get at KOKS in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Garden County/King Rhiley Field reaches roughly 6,010 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 KOKS on an average day?
It swings with the seasons: from roughly 2,007 ft at the coldest month's average temperature to about 5,159 ft at the warmest month's — all from a constant field elevation of 3,394 ft. The month-by-month table above carries the full year.
What is the field elevation of Garden County/King Rhiley Field?
3,394 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KOKS (ICAO) / OKS (FAA), in Oshkosh, Nebraska.