Middletown, Ohio · field elev 651 ft
Density Altitude at Middletown Regional/Hook Field (KMWO)
Middletown Regional/Hook Field sits at 651 ft, and even a typical July afternoon (86 °F) only lifts density altitude to about 2,523 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 | 29.4 | −1,188 ft | 38.4 | −561 ft |
| February | 31.9 | −1,013 ft | 42.0 | −315 ft |
| March | 41.1 | −376 ft | 52.2 | 373 ft |
| April | 52.0 | 359 ft | 64.7 | 1,193 ft |
| May | 62.4 | 1,044 ft | 74.1 | 1,793 ft |
| June | 71.1 | 1,603 ft | 82.4 | 2,313 ft |
| July | 74.6 | 1,825 ft | 85.8 | 2,523 ft |
| August | 73.1 | 1,730 ft | 85.1 | 2,480 ft |
| September | 66.0 | 1,276 ft | 78.9 | 2,095 ft |
| October | 53.9 | 486 ft | 66.7 | 1,321 ft |
| November | 42.6 | −274 ft | 53.4 | 453 ft |
| December | 34.0 | −866 ft | 42.5 | −281 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 KMWO
DENSITY ALTITUDE
Field elevation 651 ft — the air behaves like 2,535 ft.
- PRESSURE ALT
- 652 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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- KOXD — Miami University
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- KGDK — Greene County/Lewis A Jackson Regional
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Frequently asked questions
How high does density altitude get at KMWO in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Middletown Regional/Hook Field reaches roughly 2,523 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 KMWO on an average day?
It swings with the seasons: from roughly −1,188 ft at the coldest month's average temperature to about 1,825 ft at the warmest month's — all from a constant field elevation of 651 ft. The month-by-month table above carries the full year.
What is the field elevation of Middletown Regional/Hook Field?
651 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMWO (ICAO) / MWO (FAA), in Middletown, Ohio.