Lemmon, South Dakota · field elev 2,573 ft
Density Altitude at Lemmon Municipal (KLEM)
Lemmon Municipal sits at 2,573 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 4,917 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 | 18.9 | 475 ft | 28.8 | 1,171 ft |
| February | 22.3 | 716 ft | 32.6 | 1,433 ft |
| March | 33.1 | 1,467 ft | 45.0 | 2,272 ft |
| April | 44.7 | 2,252 ft | 57.7 | 3,105 ft |
| May | 56.0 | 2,995 ft | 69.1 | 3,832 ft |
| June | 65.7 | 3,617 ft | 78.7 | 4,429 ft |
| July | 72.6 | 4,051 ft | 86.7 | 4,917 ft |
| August | 71.3 | 3,970 ft | 86.0 | 4,875 ft |
| September | 62.0 | 3,382 ft | 76.8 | 4,312 ft |
| October | 47.2 | 2,418 ft | 59.8 | 3,241 ft |
| November | 32.7 | 1,440 ft | 43.5 | 2,172 ft |
| December | 22.1 | 702 ft | 31.9 | 1,385 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 KLEM
DENSITY ALTITUDE
Field elevation 2,573 ft — the air behaves like 4,935 ft.
- PRESSURE ALT
- 2,575 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
- 6V5 — Bison Municipal
Bison · elev 2,791 ft
- 3Y7 — Isabel Municipal
Isabel · elev 2,398 ft
- D58 — Timber Lake Municipal
Timber Lake · elev 2,193 ft
- D07 — Faith Municipal
Faith · elev 2,584 ft
- 5P2 — Mc Laughlin Municipal
Mc Laughlin · elev 2,008 ft
- 9D2 — Harding County
Buffalo · elev 2,891 ft
- 84D — Cheyenne Eagle Butte
Eagle Butte · elev 2,449 ft
- KMBG — Mobridge Municipal
Mobridge · elev 1,716 ft
Frequently asked questions
How high does density altitude get at KLEM in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Lemmon Municipal reaches roughly 4,917 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 KLEM on an average day?
It swings with the seasons: from roughly 475 ft at the coldest month's average temperature to about 4,051 ft at the warmest month's — all from a constant field elevation of 2,573 ft. The month-by-month table above carries the full year.
What is the field elevation of Lemmon Municipal?
2,573 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KLEM (ICAO) / LEM (FAA), in Lemmon, South Dakota.