Boise City, Oklahoma · field elev 4,174 ft
Density Altitude at Boise City (17K)
From a field elevation of 4,174 ft, a typical July afternoon at Boise City (94 °F) raises density altitude to about 7,279 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 | 36.1 | 3,660 ft | 51.8 | 4,694 ft |
| February | 39.1 | 3,861 ft | 55.7 | 4,945 ft |
| March | 46.8 | 4,369 ft | 64.2 | 5,484 ft ▲ |
| April | 54.5 | 4,868 ft | 71.5 | 5,938 ft ▲ |
| May | 63.8 | 5,459 ft | 80.4 | 6,482 ft ▲ |
| June | 74.0 | 6,092 ft | 90.1 | 7,061 ft ▲ |
| July | 78.3 | 6,354 ft | 93.8 | 7,279 ft ▲ |
| August | 76.1 | 6,220 ft | 90.8 | 7,103 ft ▲ |
| September | 69.2 | 5,796 ft | 84.6 | 6,734 ft ▲ |
| October | 57.0 | 5,028 ft | 73.5 | 6,061 ft ▲ |
| November | 45.3 | 4,271 ft | 61.4 | 5,308 ft ▲ |
| December | 36.5 | 3,687 ft | 51.3 | 4,662 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 17K
DENSITY ALTITUDE caution
Field elevation 4,174 ft — the air behaves like 7,291 ft.
- PRESSURE ALT
- 4,176 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 Oklahoma fields
- K49 — Texhoma Municipal
Texhoma · elev 3,468 ft
- KGUY — Guymon Municipal
Guymon · elev 3,125 ft
- O45 — Hooker Municipal
Hooker · elev 3,000 ft
- K44 — Beaver Municipal
Beaver · elev 2,491 ft
- KGAG — Gage
Gage · elev 2,223 ft
- KBFK — Buffalo Municipal
Buffalo · elev 1,822 ft
- KWWR — West Woodward
Woodward · elev 2,189 ft
- 93F — Mignon Laird Municipal
Cheyenne · elev 2,093 ft
Frequently asked questions
How high does density altitude get at 17K in summer?
On a typical July afternoon — around 94 °F at the nearest NOAA normals station — density altitude at Boise City reaches roughly 7,279 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 17K on an average day?
It swings with the seasons: from roughly 3,660 ft at the coldest month's average temperature to about 6,354 ft at the warmest month's — all from a constant field elevation of 4,174 ft. The month-by-month table above carries the full year.
What is the field elevation of Boise City?
4,174 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 17K (FAA), in Boise City, Oklahoma.