Groton, South Dakota · field elev 1,310 ft
Density Altitude at Groton Municipal (2E6)
Groton Municipal sits at 1,310 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 3,271 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 | 12.8 | −1,552 ft | 23.7 | −766 ft |
| February | 17.5 | −1,210 ft | 28.6 | −420 ft |
| March | 30.5 | −287 ft | 41.7 | 484 ft |
| April | 44.5 | 673 ft | 57.6 | 1,543 ft |
| May | 57.3 | 1,523 ft | 70.4 | 2,367 ft |
| June | 67.6 | 2,189 ft | 80.2 | 2,981 ft |
| July | 72.3 | 2,487 ft | 84.9 | 3,271 ft |
| August | 69.7 | 2,322 ft | 82.9 | 3,148 ft |
| September | 60.9 | 1,758 ft | 74.9 | 2,651 ft |
| October | 46.3 | 795 ft | 59.3 | 1,654 ft |
| November | 30.9 | −259 ft | 42.5 | 538 ft |
| December | 18.3 | −1,153 ft | 28.7 | −413 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 2E6
DENSITY ALTITUDE
Field elevation 1,310 ft — the air behaves like 3,277 ft.
- PRESSURE ALT
- 1,311 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
- KABR — Aberdeen Regional
Aberdeen · elev 1,302 ft
- KBTN — Britton Municipal
Britton · elev 1,318 ft
- 1D7 — The Sigurd Anderson
Webster · elev 1,858 ft
- 8D7 — Clark County
Clark · elev 1,793 ft
- 1D8 — Redfield Municipal
Redfield · elev 1,309 ft
- 8D3 — Sisseton Municipal
Sisseton · elev 1,162 ft
- 3FU — Faulkton Municipal
Faulkton · elev 1,571 ft
- KATY — Watertown Regional
Watertown · elev 1,749 ft
Frequently asked questions
How high does density altitude get at 2E6 in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Groton Municipal reaches roughly 3,271 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 2E6 on an average day?
It swings with the seasons: from roughly −1,552 ft at the coldest month's average temperature to about 2,487 ft at the warmest month's — all from a constant field elevation of 1,310 ft. The month-by-month table above carries the full year.
What is the field elevation of Groton Municipal?
1,310 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 2E6 (FAA), in Groton, South Dakota.