Henryetta, Oklahoma · field elev 849 ft
Density Altitude at Henryetta Municipal (F10)
Henryetta Municipal sits at 849 ft, and even a typical July afternoon (93 °F) only lifts density altitude to about 3,203 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 | 40.0 | −205 ft | 49.7 | 451 ft |
| February | 44.6 | 108 ft | 54.8 | 790 ft |
| March | 53.5 | 704 ft | 64.6 | 1,430 ft |
| April | 61.7 | 1,242 ft | 72.9 | 1,960 ft |
| May | 70.0 | 1,776 ft | 79.8 | 2,393 ft |
| June | 77.8 | 2,268 ft | 88.1 | 2,905 ft |
| July | 82.1 | 2,536 ft | 93.0 | 3,203 ft |
| August | 81.3 | 2,486 ft | 92.5 | 3,173 ft |
| September | 74.0 | 2,030 ft | 84.8 | 2,703 ft |
| October | 63.1 | 1,333 ft | 74.1 | 2,036 ft |
| November | 51.4 | 565 ft | 61.4 | 1,222 ft |
| December | 42.3 | −48 ft | 51.5 | 571 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 F10
DENSITY ALTITUDE
Field elevation 849 ft — the air behaves like 3,203 ft.
- PRESSURE ALT
- 850 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
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Frequently asked questions
How high does density altitude get at F10 in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Henryetta Municipal reaches roughly 3,203 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 F10 on an average day?
It swings with the seasons: from roughly −205 ft at the coldest month's average temperature to about 2,536 ft at the warmest month's — all from a constant field elevation of 849 ft. The month-by-month table above carries the full year.
What is the field elevation of Henryetta Municipal?
849 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is F10 (FAA), in Henryetta, Oklahoma.