Danville, Illinois · field elev 697 ft
Density Altitude at Vermilion Regional (KDNV)
Vermilion Regional sits at 697 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 2,554 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 | 27.4 | −1,272 ft | 35.3 | −718 ft |
| February | 31.7 | −969 ft | 40.4 | −367 ft |
| March | 42.1 | −251 ft | 52.0 | 416 ft |
| April | 53.7 | 529 ft | 65.2 | 1,281 ft |
| May | 63.8 | 1,191 ft | 75.3 | 1,925 ft |
| June | 72.2 | 1,729 ft | 83.1 | 2,412 ft |
| July | 75.1 | 1,913 ft | 85.4 | 2,554 ft |
| August | 73.5 | 1,812 ft | 83.9 | 2,462 ft |
| September | 67.3 | 1,417 ft | 78.9 | 2,151 ft |
| October | 55.4 | 642 ft | 66.5 | 1,365 ft |
| November | 42.8 | −203 ft | 51.9 | 410 ft |
| December | 32.4 | −920 ft | 39.9 | −401 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 KDNV
DENSITY ALTITUDE
Field elevation 697 ft — the air behaves like 2,530 ft.
- PRESSURE ALT
- 698 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 KDNV in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Vermilion Regional reaches roughly 2,554 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 KDNV on an average day?
It swings with the seasons: from roughly −1,272 ft at the coldest month's average temperature to about 1,913 ft at the warmest month's — all from a constant field elevation of 697 ft. The month-by-month table above carries the full year.
What is the field elevation of Vermilion Regional?
697 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KDNV (ICAO) / DNV (FAA), in Danville, Illinois.