Flandreau, South Dakota · field elev 1,645 ft
Density Altitude at Flandreau Municipal (4P3)
Flandreau Municipal sits at 1,645 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 3,458 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 | 13.1 | −1,108 ft | 22.6 | −425 ft |
| February | 17.3 | −804 ft | 27.6 | −72 ft |
| March | 29.5 | 61 ft | 39.7 | 764 ft |
| April | 42.9 | 981 ft | 54.4 | 1,747 ft |
| May | 55.8 | 1,839 ft | 67.0 | 2,562 ft |
| June | 66.4 | 2,523 ft | 76.8 | 3,179 ft |
| July | 70.6 | 2,790 ft | 81.3 | 3,458 ft |
| August | 68.1 | 2,632 ft | 79.0 | 3,316 ft |
| September | 60.0 | 2,112 ft | 72.3 | 2,897 ft |
| October | 46.2 | 1,203 ft | 58.2 | 1,995 ft |
| November | 31.2 | 180 ft | 41.4 | 880 ft |
| December | 18.6 | −710 ft | 27.5 | −79 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 4P3
DENSITY ALTITUDE
Field elevation 1,645 ft — the air behaves like 3,439 ft.
- PRESSURE ALT
- 1,646 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 South Dakota fields
- KBKX — Brookings Regional
Brookings · elev 1,648 ft
- KMDS — Madison Municipal
Madison · elev 1,718 ft
- KFSD — Joe Foss Field
Sioux Falls · elev 1,430 ft
- 3A9 — Arlington Municipal
Arlington · elev 1,818 ft
- Y14 — Marv Skie-Lincoln County
Tea · elev 1,511 ft
- 8D9 — Howard Municipal
Howard · elev 1,586 ft
- 7G9 — Canton Municipal
Canton · elev 1,290 ft
- 6E5 — Wilder
Desmet · elev 1,730 ft
Frequently asked questions
How high does density altitude get at 4P3 in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Flandreau Municipal reaches roughly 3,458 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 4P3 on an average day?
It swings with the seasons: from roughly −1,108 ft at the coldest month's average temperature to about 2,790 ft at the warmest month's — all from a constant field elevation of 1,645 ft. The month-by-month table above carries the full year.
What is the field elevation of Flandreau Municipal?
1,645 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 4P3 (FAA), in Flandreau, South Dakota.