Edgerton, Wisconsin · field elev 843 ft
Density Altitude at Jana (58C)
Jana sits at 843 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,578 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 | 18.5 | −1,725 ft | 27.2 | −1,103 ft |
| February | 22.0 | −1,473 ft | 31.4 | −808 ft |
| March | 33.5 | −661 ft | 43.5 | 26 ft |
| April | 45.8 | 182 ft | 57.2 | 941 ft |
| May | 57.7 | 973 ft | 69.4 | 1,730 ft |
| June | 68.0 | 1,641 ft | 79.3 | 2,355 ft |
| July | 71.9 | 1,889 ft | 82.9 | 2,578 ft |
| August | 69.8 | 1,756 ft | 81.0 | 2,461 ft |
| September | 62.1 | 1,261 ft | 74.2 | 2,035 ft |
| October | 49.7 | 444 ft | 60.8 | 1,176 ft |
| November | 36.2 | −474 ft | 45.6 | 168 ft |
| December | 24.4 | −1,302 ft | 32.6 | −724 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 58C
DENSITY ALTITUDE
Field elevation 843 ft — the air behaves like 2,584 ft.
- PRESSURE ALT
- 844 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
- 61C — Fort Atkinson Municipal
Fort Atkinson · elev 800 ft
- 5Y3 — Gutzmer'S Twin Oaks
Whitewater · elev 821 ft
- 87Y — Blackhawk Airfield
Madison · elev 920 ft
- KJVL — Southern Wisconsin Regional
Janesville · elev 808 ft
- 54W — Albany
Albany · elev 820 ft
- KMSN — Dane County Regional/Truax Field
Madison · elev 887 ft
- 88C — Palmyra Municipal
Palmyra · elev 851 ft
- C37 — Brodhead
Brodhead · elev 792 ft
Frequently asked questions
How high does density altitude get at 58C in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Jana reaches roughly 2,578 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 58C on an average day?
It swings with the seasons: from roughly −1,725 ft at the coldest month's average temperature to about 1,889 ft at the warmest month's — all from a constant field elevation of 843 ft. The month-by-month table above carries the full year.
What is the field elevation of Jana?
843 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 58C (FAA), in Edgerton, Wisconsin.