Napoleon, North Dakota · field elev 1,985 ft
Density Altitude at Napoleon Municipal (5B5)
Napoleon Municipal sits at 1,985 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 3,891 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 | 10.2 | −891 ft | 19.8 | −198 ft |
| February | 14.2 | −600 ft | 24.4 | 128 ft |
| March | 26.5 | 276 ft | 36.7 | 982 ft |
| April | 40.8 | 1,261 ft | 52.9 | 2,068 ft |
| May | 53.8 | 2,127 ft | 65.9 | 2,909 ft |
| June | 64.1 | 2,794 ft | 75.4 | 3,507 ft |
| July | 69.6 | 3,144 ft | 81.6 | 3,891 ft |
| August | 68.0 | 3,042 ft | 80.7 | 3,836 ft |
| September | 58.6 | 2,440 ft | 71.1 | 3,238 ft |
| October | 43.9 | 1,470 ft | 55.3 | 2,225 ft |
| November | 28.5 | 416 ft | 38.4 | 1,098 ft |
| December | 16.3 | −449 ft | 25.0 | 171 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 5B5
DENSITY ALTITUDE
Field elevation 1,985 ft — the air behaves like 3,915 ft.
- PRESSURE ALT
- 1,986 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- AIR DENSITY
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- 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
- 6L5 — Wishek Municipal
Wishek · elev 2,043 ft
- 6H8 — Hazelton Municipal
Hazelton · elev 2,015 ft
- 9G9 — Gackle Municipal
Gackle · elev 1,904 ft
- 7L2 — Linton Municipal
Linton · elev 1,779 ft
- KASY — Ashley Municipal
Ashley · elev 2,034 ft
- D03 — Kulm Municipal
Kulm · elev 1,959 ft
- 51D — Edgeley Municipal
Edgeley · elev 1,604 ft
- KBIS — Bismarck Municipal
Bismarck · elev 1,661 ft
Frequently asked questions
How high does density altitude get at 5B5 in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Napoleon Municipal reaches roughly 3,891 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 5B5 on an average day?
It swings with the seasons: from roughly −891 ft at the coldest month's average temperature to about 3,144 ft at the warmest month's — all from a constant field elevation of 1,985 ft. The month-by-month table above carries the full year.
What is the field elevation of Napoleon Municipal?
1,985 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 5B5 (FAA), in Napoleon, North Dakota.