Fairmont, Oklahoma · field elev 1,170 ft
Density Altitude at Fairmont Field (1OK)
Fairmont Field sits at 1,170 ft, and even a typical July afternoon (94 °F) only lifts density altitude to about 3,665 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 | 36.4 | −53 ft | 48.2 | 748 ft |
| February | 39.7 | 174 ft | 52.1 | 1,008 ft |
| March | 49.0 | 802 ft | 61.4 | 1,618 ft |
| April | 57.6 | 1,370 ft | 70.4 | 2,195 ft |
| May | 67.3 | 1,998 ft | 79.2 | 2,748 ft |
| June | 77.6 | 2,648 ft | 89.2 | 3,363 ft |
| July | 82.3 | 2,940 ft | 94.2 | 3,665 ft |
| August | 80.9 | 2,854 ft | 93.2 | 3,605 ft |
| September | 72.7 | 2,341 ft | 85.1 | 3,113 ft |
| October | 60.3 | 1,546 ft | 73.2 | 2,372 ft |
| November | 47.7 | 715 ft | 59.7 | 1,507 ft |
| December | 37.7 | 37 ft | 48.5 | 769 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 1OK
DENSITY ALTITUDE
Field elevation 1,170 ft — the air behaves like 3,653 ft.
- PRESSURE ALT
- 1,171 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
- KWDG — Enid Woodring Regional
Enid · elev 1,167 ft
- F22 — Perry Municipal
Perry · elev 1,003 ft
- 2K1 — Pond Creek Municipal
Pond Creek · elev 1,061 ft
- 4O7 — Decker Field
Meno · elev 1,330 ft
- O53 — Medford Municipal
Medford · elev 1,092 ft
- KBKN — Blackwell-Tonkawa Municipal
Blackwell · elev 1,030 ft
- KSWO — Stillwater Regional
Stillwater · elev 1,000 ft
- F92 — Kingfisher
Kingfisher · elev 1,072 ft
Frequently asked questions
How high does density altitude get at 1OK in summer?
On a typical July afternoon — around 94 °F at the nearest NOAA normals station — density altitude at Fairmont Field reaches roughly 3,665 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 1OK on an average day?
It swings with the seasons: from roughly −53 ft at the coldest month's average temperature to about 2,940 ft at the warmest month's — all from a constant field elevation of 1,170 ft. The month-by-month table above carries the full year.
What is the field elevation of Fairmont Field?
1,170 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 1OK (FAA), in Fairmont, Oklahoma.