Brodhead, Wisconsin · field elev 792 ft
Density Altitude at Brodhead (C37)
Brodhead sits at 792 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,528 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 | 19.0 | −1,753 ft | 27.4 | −1,153 ft |
| February | 22.7 | −1,487 ft | 31.8 | −843 ft |
| March | 34.5 | −655 ft | 44.4 | 24 ft |
| April | 46.9 | 193 ft | 58.3 | 950 ft |
| May | 58.6 | 970 ft | 70.1 | 1,712 ft |
| June | 68.6 | 1,617 ft | 79.8 | 2,324 ft |
| July | 72.0 | 1,833 ft | 83.1 | 2,528 ft |
| August | 70.1 | 1,712 ft | 81.3 | 2,417 ft |
| September | 62.4 | 1,217 ft | 74.6 | 1,998 ft |
| October | 50.2 | 414 ft | 61.6 | 1,165 ft |
| November | 36.9 | −489 ft | 46.0 | 132 ft |
| December | 25.0 | −1,323 ft | 32.8 | −774 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 C37
DENSITY ALTITUDE
Field elevation 792 ft — the air behaves like 2,522 ft.
- PRESSURE ALT
- 793 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
- 54W — Albany
Albany · elev 820 ft
- KEFT — Monroe Municipal
Monroe · elev 1,086 ft
- KJVL — Southern Wisconsin Regional
Janesville · elev 808 ft
- 44C — Beloit
Beloit · elev 817 ft
- 58C — Jana
Edgerton · elev 843 ft
- 5Y3 — Gutzmer'S Twin Oaks
Whitewater · elev 821 ft
- 87Y — Blackhawk Airfield
Madison · elev 920 ft
- C29 — Middleton Municipal/Morey Field
Middleton · elev 928 ft
Frequently asked questions
How high does density altitude get at C37 in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Brodhead reaches roughly 2,528 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 C37 on an average day?
It swings with the seasons: from roughly −1,753 ft at the coldest month's average temperature to about 1,833 ft at the warmest month's — all from a constant field elevation of 792 ft. The month-by-month table above carries the full year.
What is the field elevation of Brodhead?
792 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is C37 (FAA), in Brodhead, Wisconsin.