Friendship (Adams), Wisconsin · field elev 979 ft
Density Altitude at Adams County Legion Field (63C)
Adams County Legion Field sits at 979 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,707 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 | 15.7 | −1,757 ft | 25.4 | −1,060 ft |
| February | 19.6 | −1,475 ft | 30.4 | −708 ft |
| March | 31.4 | −638 ft | 42.2 | 107 ft |
| April | 44.2 | 242 ft | 55.9 | 1,023 ft |
| May | 56.9 | 1,089 ft | 68.7 | 1,853 ft |
| June | 67.1 | 1,750 ft | 78.7 | 2,484 ft |
| July | 70.8 | 1,986 ft | 82.3 | 2,707 ft |
| August | 68.8 | 1,859 ft | 80.5 | 2,596 ft |
| September | 60.5 | 1,324 ft | 72.7 | 2,107 ft |
| October | 47.7 | 478 ft | 58.7 | 1,207 ft |
| November | 34.5 | −422 ft | 43.7 | 209 ft |
| December | 22.4 | −1,274 ft | 30.9 | −673 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 63C
DENSITY ALTITUDE
Field elevation 979 ft — the air behaves like 2,689 ft.
- PRESSURE ALT
- 980 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
- KDAF — Necedah
Necedah · elev 919 ft
- 82C — Mauston/New Lisbon Union
New Lisbon · elev 908 ft
- Y50 — Wautoma Municipal
Wautoma · elev 859 ft
- KISW — Alexander Field South Wood County
Wisconsin Rapids · elev 1,021 ft
- 60C — Elroy
Elroy · elev 944 ft
- KDLL — Baraboo/Wisconsin Dells Regional
Baraboo · elev 980 ft
- C35 — Reedsburg Municipal
Reedsburg · elev 906 ft
- C47 — Portage Municipal
Portage · elev 825 ft
Frequently asked questions
How high does density altitude get at 63C in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Adams County Legion Field reaches roughly 2,707 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 63C on an average day?
It swings with the seasons: from roughly −1,757 ft at the coldest month's average temperature to about 1,986 ft at the warmest month's — all from a constant field elevation of 979 ft. The month-by-month table above carries the full year.
What is the field elevation of Adams County Legion Field?
979 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 63C (FAA), in Friendship (Adams), Wisconsin.