Viroqua, Wisconsin · field elev 1,292 ft
Density Altitude at Viroqua Municipal (Y51)
Viroqua Municipal sits at 1,292 ft, and even a typical July afternoon (79 °F) only lifts density altitude to about 2,891 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 | 14.5 | −1,450 ft | 22.9 | −846 ft |
| February | 18.6 | −1,154 ft | 27.6 | −513 ft |
| March | 30.9 | −282 ft | 40.4 | 373 ft |
| April | 43.7 | 597 ft | 54.3 | 1,304 ft |
| May | 55.4 | 1,377 ft | 66.0 | 2,064 ft |
| June | 65.3 | 2,019 ft | 75.3 | 2,654 ft |
| July | 69.0 | 2,256 ft | 79.1 | 2,891 ft |
| August | 67.2 | 2,141 ft | 77.4 | 2,785 ft |
| September | 59.3 | 1,632 ft | 70.2 | 2,332 ft |
| October | 46.7 | 799 ft | 56.9 | 1,475 ft |
| November | 32.8 | −150 ft | 41.2 | 428 ft |
| December | 20.8 | −996 ft | 28.4 | −457 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 Y51
DENSITY ALTITUDE
Field elevation 1,292 ft — the air behaves like 2,885 ft.
- PRESSURE ALT
- 1,293 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 Wisconsin fields
- KCMY — Sparta/Fort Mc Coy
Sparta · elev 839 ft
- KLSE — La Crosse Regional
La Crosse · elev 655 ft
- KOVS — Boscobel
Boscobel · elev 673 ft
- 60C — Elroy
Elroy · elev 944 ft
- Y72 — Bloyer Field
Tomah · elev 966 ft
- 93C — Richland
Richland Center · elev 742 ft
- KPDC — Prairie Du Chien Municipal
Prairie Du Chien · elev 660 ft
- 82C — Mauston/New Lisbon Union
New Lisbon · elev 908 ft
Frequently asked questions
How high does density altitude get at Y51 in summer?
On a typical July afternoon — around 79 °F at the nearest NOAA normals station — density altitude at Viroqua Municipal reaches roughly 2,891 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 Y51 on an average day?
It swings with the seasons: from roughly −1,450 ft at the coldest month's average temperature to about 2,256 ft at the warmest month's — all from a constant field elevation of 1,292 ft. The month-by-month table above carries the full year.
What is the field elevation of Viroqua Municipal?
1,292 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is Y51 (FAA), in Viroqua, Wisconsin.