Reedsburg, Wisconsin · field elev 906 ft
Density Altitude at Reedsburg Municipal (C35)
Reedsburg Municipal sits at 906 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,612 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 | 17.5 | −1,718 ft | 27.0 | −1,038 ft |
| February | 21.7 | −1,416 ft | 31.9 | −694 ft |
| March | 33.7 | −569 ft | 44.0 | 138 ft |
| April | 46.0 | 273 ft | 57.3 | 1,025 ft |
| May | 58.0 | 1,071 ft | 69.4 | 1,808 ft |
| June | 67.6 | 1,693 ft | 78.5 | 2,382 ft |
| July | 71.5 | 1,941 ft | 82.2 | 2,612 ft |
| August | 69.2 | 1,795 ft | 80.2 | 2,488 ft |
| September | 61.3 | 1,286 ft | 72.8 | 2,024 ft |
| October | 48.8 | 462 ft | 60.0 | 1,202 ft |
| November | 36.0 | −409 ft | 45.1 | 213 ft |
| December | 24.0 | −1,251 ft | 32.8 | −631 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 C35
DENSITY ALTITUDE
Field elevation 906 ft — the air behaves like 2,599 ft.
- PRESSURE ALT
- 907 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
- KDLL — Baraboo/Wisconsin Dells Regional
Baraboo · elev 980 ft
- 60C — Elroy
Elroy · elev 944 ft
- 91C — Sauk/Prairie
Prairie Du Sac · elev 832 ft
- 82C — Mauston/New Lisbon Union
New Lisbon · elev 908 ft
- 93C — Richland
Richland Center · elev 742 ft
- KLNR — Tri-County Regional
Lone Rock · elev 717 ft
- C47 — Portage Municipal
Portage · elev 825 ft
- 63C — Adams County Legion Field
Friendship (Adams) · elev 979 ft
Frequently asked questions
How high does density altitude get at C35 in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Reedsburg Municipal reaches roughly 2,612 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 C35 on an average day?
It swings with the seasons: from roughly −1,718 ft at the coldest month's average temperature to about 1,941 ft at the warmest month's — all from a constant field elevation of 906 ft. The month-by-month table above carries the full year.
What is the field elevation of Reedsburg Municipal?
906 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is C35 (FAA), in Reedsburg, Wisconsin.