Valley City, North Dakota · field elev 1,402 ft
Density Altitude at Barnes County Municipal (KBAC)
Barnes County Municipal sits at 1,402 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 3,155 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 | 8.0 | −1,788 ft | 18.3 | −1,037 ft |
| February | 12.2 | −1,480 ft | 23.2 | −687 ft |
| March | 25.1 | −552 ft | 36.0 | 209 ft |
| April | 40.4 | 510 ft | 53.2 | 1,368 ft |
| May | 54.2 | 1,434 ft | 67.1 | 2,270 ft |
| June | 64.8 | 2,123 ft | 76.4 | 2,857 ft |
| July | 69.1 | 2,397 ft | 81.2 | 3,155 ft |
| August | 67.1 | 2,270 ft | 80.1 | 3,087 ft |
| September | 58.0 | 1,683 ft | 71.4 | 2,543 ft |
| October | 43.9 | 747 ft | 55.9 | 1,545 ft |
| November | 28.3 | −326 ft | 38.3 | 367 ft |
| December | 14.9 | −1,283 ft | 24.2 | −616 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 KBAC
DENSITY ALTITUDE
Field elevation 1,402 ft — the air behaves like 3,143 ft.
- PRESSURE ALT
- 1,403 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
- 64G — Page Regional
Page · elev 1,218 ft
- KJMS — Jamestown Regional
Jamestown · elev 1,500 ft
- S32 — Cooperstown Municipal
Cooperstown · elev 1,424 ft
- 6L3 — Lisbon Municipal
Lisbon · elev 1,240 ft
- 5N8 — Casselton Robert Miller Regional
Casselton · elev 933 ft
- 1A2 — Arthur
Arthur · elev 973 ft
- 4F9 — La Moure Rott Municipal
La Moure · elev 1,310 ft
Frequently asked questions
How high does density altitude get at KBAC in summer?
On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Barnes County Municipal reaches roughly 3,155 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 KBAC on an average day?
It swings with the seasons: from roughly −1,788 ft at the coldest month's average temperature to about 2,397 ft at the warmest month's — all from a constant field elevation of 1,402 ft. The month-by-month table above carries the full year.
What is the field elevation of Barnes County Municipal?
1,402 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KBAC (ICAO) / BAC (FAA), in Valley City, North Dakota.