Lisbon, North Dakota · field elev 1,240 ft
Density Altitude at Lisbon Municipal (6L3)
Lisbon Municipal sits at 1,240 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 3,007 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 | 9.1 | −1,912 ft | 18.5 | −1,226 ft |
| February | 13.5 | −1,589 ft | 23.7 | −854 ft |
| March | 26.6 | −649 ft | 37.1 | 83 ft |
| April | 41.3 | 370 ft | 53.5 | 1,187 ft |
| May | 55.0 | 1,286 ft | 67.4 | 2,090 ft |
| June | 65.5 | 1,968 ft | 77.1 | 2,703 ft |
| July | 70.2 | 2,268 ft | 82.0 | 3,007 ft |
| August | 68.0 | 2,128 ft | 80.6 | 2,920 ft |
| September | 58.9 | 1,542 ft | 72.1 | 2,389 ft |
| October | 44.1 | 560 ft | 56.1 | 1,358 ft |
| November | 28.9 | −487 ft | 38.7 | 192 ft |
| December | 15.9 | −1,414 ft | 24.6 | −790 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 6L3
DENSITY ALTITUDE
Field elevation 1,240 ft — the air behaves like 3,007 ft.
- PRESSURE ALT
- 1,241 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
- 5N4 — Sky Haven
Enderlin · elev 1,151 ft
- KGWR — Gwinner/Roger Melroe Field
Gwinner · elev 1,266 ft
- 4R6 — Milnor Municipal
Milnor · elev 1,091 ft
- 2D5 — Oakes Municipal
Oakes · elev 1,335 ft
- 4F9 — La Moure Rott Municipal
La Moure · elev 1,310 ft
- 4N4 — Lidgerwood Municipal
Lidgerwood · elev 1,082 ft
- KBAC — Barnes County Municipal
Valley City · elev 1,402 ft
- K74 — Robert Odegaard Field
Kindred · elev 947 ft
Frequently asked questions
How high does density altitude get at 6L3 in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Lisbon Municipal reaches roughly 3,007 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 6L3 on an average day?
It swings with the seasons: from roughly −1,912 ft at the coldest month's average temperature to about 2,268 ft at the warmest month's — all from a constant field elevation of 1,240 ft. The month-by-month table above carries the full year.
What is the field elevation of Lisbon Municipal?
1,240 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 6L3 (FAA), in Lisbon, North Dakota.