Neenah, Wisconsin · field elev 844 ft
Density Altitude at Brennand (79C)
Brennand sits at 844 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,493 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 | 17.7 | −1,782 ft | 25.4 | −1,229 ft |
| February | 20.4 | −1,587 ft | 29.1 | −968 ft |
| March | 31.4 | −806 ft | 40.6 | −170 ft |
| April | 44.0 | 61 ft | 54.0 | 731 ft |
| May | 56.8 | 916 ft | 67.2 | 1,591 ft |
| June | 66.8 | 1,565 ft | 77.0 | 2,212 ft |
| July | 71.4 | 1,859 ft | 81.5 | 2,493 ft |
| August | 69.5 | 1,738 ft | 79.3 | 2,356 ft |
| September | 61.3 | 1,210 ft | 71.9 | 1,891 ft |
| October | 48.6 | 371 ft | 57.8 | 981 ft |
| November | 35.5 | −521 ft | 43.4 | 20 ft |
| December | 23.8 | −1,343 ft | 30.7 | −855 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 79C
DENSITY ALTITUDE
Field elevation 844 ft — the air behaves like 2,524 ft.
- PRESSURE ALT
- 845 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
- KATW — Appleton International
Appleton · elev 918 ft
- KOSH — Wittman Regional
Oshkosh · elev 809 ft
- 11Y — Flying Feathers
Chilton · elev 913 ft
- W34 — Shiocton
Shiocton · elev 760 ft
- KPCZ — Waupaca Municipal
Waupaca · elev 840 ft
- 8D1 — New Holstein Municipal
New Holstein · elev 992 ft
- KFLD — Fond Du Lac County
Fond Du Lac · elev 809 ft
- KGRB — Green Bay/Austin Straubel International
Green Bay · elev 695 ft
Frequently asked questions
How high does density altitude get at 79C in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Brennand reaches roughly 2,493 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 79C on an average day?
It swings with the seasons: from roughly −1,782 ft at the coldest month's average temperature to about 1,859 ft at the warmest month's — all from a constant field elevation of 844 ft. The month-by-month table above carries the full year.
What is the field elevation of Brennand?
844 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 79C (FAA), in Neenah, Wisconsin.