Blackwell, Oklahoma · field elev 1,030 ft
Density Altitude at Blackwell-Tonkawa Municipal (KBKN)
Blackwell-Tonkawa Municipal sits at 1,030 ft, and even a typical July afternoon (94 °F) only lifts density altitude to about 3,471 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 | 34.6 | −352 ft | 46.9 | 488 ft |
| February | 38.7 | −69 ft | 51.8 | 815 ft |
| March | 47.8 | 548 ft | 61.3 | 1,439 ft |
| April | 57.2 | 1,171 ft | 70.7 | 2,042 ft |
| May | 67.1 | 1,813 ft | 79.2 | 2,577 ft |
| June | 76.8 | 2,427 ft | 88.6 | 3,156 ft |
| July | 81.5 | 2,720 ft | 93.8 | 3,471 ft |
| August | 80.2 | 2,639 ft | 92.7 | 3,405 ft |
| September | 72.2 | 2,138 ft | 84.8 | 2,924 ft |
| October | 59.9 | 1,348 ft | 73.2 | 2,201 ft |
| November | 47.2 | 508 ft | 60.0 | 1,354 ft |
| December | 37.1 | −179 ft | 48.7 | 608 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 KBKN
DENSITY ALTITUDE
Field elevation 1,030 ft — the air behaves like 3,483 ft.
- PRESSURE ALT
- 1,031 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
- KPNC — Ponca City Regional
Ponca City · elev 1,009 ft
- O53 — Medford Municipal
Medford · elev 1,092 ft
- F22 — Perry Municipal
Perry · elev 1,003 ft
- 2K1 — Pond Creek Municipal
Pond Creek · elev 1,061 ft
- 1OK — Fairmont Field
Fairmont · elev 1,170 ft
- KWDG — Enid Woodring Regional
Enid · elev 1,167 ft
- H97 — Pawnee Municipal
Pawnee · elev 875 ft
- KSWO — Stillwater Regional
Stillwater · elev 1,000 ft
Frequently asked questions
How high does density altitude get at KBKN in summer?
On a typical July afternoon — around 94 °F at the nearest NOAA normals station — density altitude at Blackwell-Tonkawa Municipal reaches roughly 3,471 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 KBKN on an average day?
It swings with the seasons: from roughly −352 ft at the coldest month's average temperature to about 2,720 ft at the warmest month's — all from a constant field elevation of 1,030 ft. The month-by-month table above carries the full year.
What is the field elevation of Blackwell-Tonkawa Municipal?
1,030 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KBKN (ICAO) / BKN (FAA), in Blackwell, Oklahoma.