Milbank, South Dakota · field elev 1,118 ft
Density Altitude at Milbank Municipal (1D1)
Milbank Municipal sits at 1,118 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 2,796 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 | 12.2 | −1,837 ft | 20.9 | −1,207 ft |
| February | 16.1 | −1,553 ft | 25.6 | −872 ft |
| March | 28.4 | −674 ft | 37.8 | −21 ft |
| April | 42.8 | 320 ft | 53.8 | 1,056 ft |
| May | 55.8 | 1,188 ft | 67.0 | 1,915 ft |
| June | 66.6 | 1,889 ft | 76.9 | 2,541 ft |
| July | 70.6 | 2,144 ft | 81.0 | 2,796 ft |
| August | 68.2 | 1,991 ft | 79.1 | 2,678 ft |
| September | 59.9 | 1,456 ft | 71.8 | 2,220 ft |
| October | 46.3 | 557 ft | 57.9 | 1,326 ft |
| November | 31.3 | −471 ft | 40.8 | 184 ft |
| December | 18.1 | −1,408 ft | 26.5 | −808 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 1D1
DENSITY ALTITUDE
Field elevation 1,118 ft — the air behaves like 2,796 ft.
- PRESSURE ALT
- 1,119 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
- KATY — Watertown Regional
Watertown · elev 1,749 ft
- 8D3 — Sisseton Municipal
Sisseton · elev 1,162 ft
- 1D7 — The Sigurd Anderson
Webster · elev 1,858 ft
- 8D7 — Clark County
Clark · elev 1,793 ft
- 3A9 — Arlington Municipal
Arlington · elev 1,818 ft
- KBKX — Brookings Regional
Brookings · elev 1,648 ft
- KBTN — Britton Municipal
Britton · elev 1,318 ft
- 6E5 — Wilder
Desmet · elev 1,730 ft
Frequently asked questions
How high does density altitude get at 1D1 in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Milbank Municipal reaches roughly 2,796 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 1D1 on an average day?
It swings with the seasons: from roughly −1,837 ft at the coldest month's average temperature to about 2,144 ft at the warmest month's — all from a constant field elevation of 1,118 ft. The month-by-month table above carries the full year.
What is the field elevation of Milbank Municipal?
1,118 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 1D1 (FAA), in Milbank, South Dakota.