Bismarck, North Dakota · field elev 1,661 ft
Density Altitude at Bismarck Municipal (KBIS)
Bismarck Municipal sits at 1,661 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 3,686 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 | −1,110 ft | 23.2 | −362 ft |
| February | 17.5 | −769 ft | 27.8 | −38 ft |
| March | 30.1 | 123 ft | 41.0 | 872 ft |
| April | 43.2 | 1,021 ft | 56.0 | 1,871 ft |
| May | 55.3 | 1,826 ft | 68.3 | 2,664 ft |
| June | 65.4 | 2,479 ft | 77.9 | 3,267 ft |
| July | 71.3 | 2,854 ft | 84.7 | 3,686 ft |
| August | 69.6 | 2,746 ft | 83.5 | 3,613 ft |
| September | 59.7 | 2,112 ft | 73.4 | 2,986 ft |
| October | 44.8 | 1,129 ft | 57.1 | 1,943 ft |
| November | 29.9 | 109 ft | 40.6 | 845 ft |
| December | 17.9 | −740 ft | 27.7 | −45 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 KBIS
DENSITY ALTITUDE
Field elevation 1,661 ft — the air behaves like 3,705 ft.
- PRESSURE ALT
- 1,662 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- 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
- Y19 — Mandan Regional/Lawler Field
Mandan · elev 1,944 ft
- 6H8 — Hazelton Municipal
Hazelton · elev 2,015 ft
- 5C8 — Washburn Municipal
Washburn · elev 1,908 ft
- 7L2 — Linton Municipal
Linton · elev 1,779 ft
- Y27 — Standing Rock
Fort Yates · elev 1,634 ft
- 7G2 — Mc Clusky Municipal
Mc Clusky · elev 1,900 ft
- 5B5 — Napoleon Municipal
Napoleon · elev 1,985 ft
- 91N — Turtle Lake Municipal
Turtle Lake · elev 1,916 ft
Frequently asked questions
How high does density altitude get at KBIS in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Bismarck Municipal reaches roughly 3,686 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 KBIS on an average day?
It swings with the seasons: from roughly −1,110 ft at the coldest month's average temperature to about 2,854 ft at the warmest month's — all from a constant field elevation of 1,661 ft. The month-by-month table above carries the full year.
What is the field elevation of Bismarck Municipal?
1,661 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KBIS (ICAO) / BIS (FAA), in Bismarck, North Dakota.