Pryor, Oklahoma · field elev 622 ft
Density Altitude at Mid-America Industrial (H71)
Mid-America Industrial sits at 622 ft, and even a typical August afternoon (92 °F) only lifts density altitude to about 2,873 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 | 36.0 | −763 ft | 47.0 | −12 ft |
| February | 40.7 | −440 ft | 52.9 | 383 ft |
| March | 49.1 | 130 ft | 60.9 | 910 ft |
| April | 58.4 | 747 ft | 70.7 | 1,542 ft |
| May | 67.6 | 1,344 ft | 78.6 | 2,041 ft |
| June | 76.1 | 1,884 ft | 86.6 | 2,537 ft |
| July | 80.4 | 2,153 ft | 91.2 | 2,818 ft |
| August | 80.0 | 2,128 ft | 92.1 | 2,873 ft |
| September | 71.8 | 1,612 ft | 83.5 | 2,346 ft |
| October | 60.0 | 851 ft | 73.0 | 1,688 ft |
| November | 49.1 | 130 ft | 61.0 | 917 ft |
| December | 39.0 | −556 ft | 50.5 | 223 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 H71
DENSITY ALTITUDE
Field elevation 622 ft — the air behaves like 2,867 ft.
- PRESSURE ALT
- 623 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 H71 in summer?
On a typical August afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Mid-America Industrial reaches roughly 2,873 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 H71 on an average day?
It swings with the seasons: from roughly −763 ft at the coldest month's average temperature to about 2,153 ft at the warmest month's — all from a constant field elevation of 622 ft. The month-by-month table above carries the full year.
What is the field elevation of Mid-America Industrial?
622 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is H71 (FAA), in Pryor, Oklahoma.