Platte, South Dakota · field elev 1,618 ft
Density Altitude at Platte Municipal (1D3)
Platte Municipal sits at 1,618 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 3,762 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 | 20.3 | −622 ft | 30.0 | 62 ft |
| February | 24.4 | −331 ft | 34.7 | 388 ft |
| March | 35.0 | 409 ft | 46.1 | 1,163 ft |
| April | 46.3 | 1,176 ft | 57.9 | 1,942 ft |
| May | 57.9 | 1,942 ft | 69.2 | 2,668 ft |
| June | 68.8 | 2,643 ft | 79.8 | 3,332 ft |
| July | 74.8 | 3,021 ft | 86.8 | 3,762 ft |
| August | 72.5 | 2,877 ft | 84.7 | 3,634 ft |
| September | 63.8 | 2,324 ft | 76.9 | 3,152 ft |
| October | 49.3 | 1,376 ft | 61.5 | 2,176 ft |
| November | 35.5 | 443 ft | 46.1 | 1,163 ft |
| December | 24.1 | −352 ft | 33.4 | 298 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 1D3
DENSITY ALTITUDE
Field elevation 1,618 ft — the air behaves like 3,774 ft.
- PRESSURE ALT
- 1,619 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
- D65 — Corsica Municipal
Corsica · elev 1,580 ft
- 8D8 — Lake Andes Municipal
Lake Andes · elev 1,475 ft
- 6A6 — Kimball Municipal
Kimball · elev 1,755 ft
- 9D1 — Gregory Municipal/Flynn Field
Gregory · elev 2,175 ft
- 9V9 — Chamberlain Municipal
Chamberlain · elev 1,696 ft
- KAGZ — Wagner Municipal
Wagner · elev 1,478 ft
- 8V3 — Parkston Municipal
Parkston · elev 1,418 ft
- KMHE — Mitchell Municipal
Mitchell · elev 1,304 ft
Frequently asked questions
How high does density altitude get at 1D3 in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Platte Municipal reaches roughly 3,762 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 1D3 on an average day?
It swings with the seasons: from roughly −622 ft at the coldest month's average temperature to about 3,021 ft at the warmest month's — all from a constant field elevation of 1,618 ft. The month-by-month table above carries the full year.
What is the field elevation of Platte Municipal?
1,618 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 1D3 (FAA), in Platte, South Dakota.