Milton, West Virginia · field elev 572 ft
Density Altitude at Ona Airpark (12V)
Ona Airpark sits at 572 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 2,592 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 | 35.5 | −860 ft | 44.3 | −256 ft |
| February | 38.8 | −632 ft | 49.0 | 61 ft |
| March | 46.7 | −94 ft | 58.5 | 692 ft |
| April | 57.6 | 632 ft | 71.3 | 1,519 ft |
| May | 66.2 | 1,192 ft | 78.4 | 1,967 ft |
| June | 74.1 | 1,696 ft | 85.5 | 2,408 ft |
| July | 77.8 | 1,929 ft | 88.5 | 2,592 ft |
| August | 76.4 | 1,842 ft | 87.4 | 2,525 ft |
| September | 69.9 | 1,429 ft | 81.6 | 2,167 ft |
| October | 58.3 | 678 ft | 70.5 | 1,468 ft |
| November | 47.1 | −67 ft | 58.3 | 678 ft |
| December | 39.5 | −584 ft | 48.2 | 7 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 12V
DENSITY ALTITUDE
Field elevation 572 ft — the air behaves like 2,623 ft.
- PRESSURE ALT
- 573 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 West Virginia fields
- I41 — Robert Newlon Field
Huntington · elev 550 ft
- KHTS — Tri-State/Milton J Ferguson Field
Huntington · elev 828 ft
- 3I2 — Mason County
Point Pleasant · elev 643 ft
- KCRW — West Virginia International Yeager
Charleston · elev 947 ft
- I18 — Jackson County
Ravenswood · elev 758 ft
- 6L4 — Logan County
Logan · elev 1,666 ft
- KEBD — Southern West Virginia Regional
Williamson · elev 1,883 ft
- KUSW — Boggs Field
Spencer · elev 928 ft
Frequently asked questions
How high does density altitude get at 12V in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Ona Airpark reaches roughly 2,592 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 12V on an average day?
It swings with the seasons: from roughly −860 ft at the coldest month's average temperature to about 1,929 ft at the warmest month's — all from a constant field elevation of 572 ft. The month-by-month table above carries the full year.
What is the field elevation of Ona Airpark?
572 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 12V (FAA), in Milton, West Virginia.