La Moure, North Dakota · field elev 1,310 ft
Density Altitude at La Moure Rott Municipal (4F9)
La Moure Rott Municipal sits at 1,310 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 3,173 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 | 10.1 | −1,750 ft | 20.6 | −987 ft |
| February | 14.6 | −1,420 ft | 25.6 | −632 ft |
| March | 27.7 | −484 ft | 38.9 | 293 ft |
| April | 42.7 | 552 ft | 55.7 | 1,419 ft |
| May | 55.8 | 1,425 ft | 68.8 | 2,265 ft |
| June | 66.3 | 2,106 ft | 78.2 | 2,857 ft |
| July | 70.9 | 2,399 ft | 83.3 | 3,173 ft |
| August | 68.9 | 2,272 ft | 82.3 | 3,111 ft |
| September | 59.5 | 1,667 ft | 73.5 | 2,563 ft |
| October | 45.2 | 721 ft | 58.2 | 1,582 ft |
| November | 29.7 | −343 ft | 40.5 | 402 ft |
| December | 16.6 | −1,275 ft | 26.3 | −582 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 4F9
DENSITY ALTITUDE
Field elevation 1,310 ft — the air behaves like 3,154 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 North Dakota fields
- 2D5 — Oakes Municipal
Oakes · elev 1,335 ft
- 51D — Edgeley Municipal
Edgeley · elev 1,604 ft
- 4E7 — Ellendale Municipal
Ellendale · elev 1,457 ft
- 6L3 — Lisbon Municipal
Lisbon · elev 1,240 ft
- D03 — Kulm Municipal
Kulm · elev 1,959 ft
- KGWR — Gwinner/Roger Melroe Field
Gwinner · elev 1,266 ft
- 5N4 — Sky Haven
Enderlin · elev 1,151 ft
- 4R6 — Milnor Municipal
Milnor · elev 1,091 ft
Frequently asked questions
How high does density altitude get at 4F9 in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at La Moure Rott Municipal reaches roughly 3,173 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 4F9 on an average day?
It swings with the seasons: from roughly −1,750 ft at the coldest month's average temperature to about 2,399 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 La Moure Rott Municipal?
1,310 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 4F9 (FAA), in La Moure, North Dakota.