Bigfork, Minnesota · field elev 1,351 ft
Density Altitude at Bigfork Municipal (KFOZ)
Bigfork Municipal sits at 1,351 ft, and even a typical July afternoon (77 °F) only lifts density altitude to about 2,820 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 | 5.5 | −2,038 ft | 15.7 | −1,289 ft |
| February | 9.7 | −1,727 ft | 22.1 | −829 ft |
| March | 23.8 | −708 ft | 35.6 | 118 ft |
| April | 38.1 | 289 ft | 49.3 | 1,046 ft |
| May | 51.5 | 1,192 ft | 62.9 | 1,938 ft |
| June | 61.9 | 1,873 ft | 71.9 | 2,512 ft |
| July | 66.3 | 2,156 ft | 76.8 | 2,820 ft |
| August | 64.8 | 2,060 ft | 74.8 | 2,695 ft |
| September | 56.5 | 1,522 ft | 66.0 | 2,137 ft |
| October | 42.7 | 603 ft | 50.9 | 1,152 ft |
| November | 26.9 | −489 ft | 33.9 | 0 ft |
| December | 13.2 | −1,471 ft | 21.2 | −893 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 KFOZ
DENSITY ALTITUDE
Field elevation 1,351 ft — the air behaves like 2,832 ft.
- PRESSURE ALT
- 1,352 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 Minnesota fields
- 9Y0 — Bowstring
Bowstring · elev 1,372 ft
- 43Y — Northome Municipal
Northome · elev 1,430 ft
- 7Y9 — Big Falls Municipal
Big Falls · elev 1,233 ft
- KORB — Orr Regional
Orr · elev 1,313 ft
- KGPZ — Grand Rapids/Itasca County-Gordon Newstrom Field
Grand Rapids · elev 1,356 ft
- 13Y — Littlefork Municipal/Hanover
Littlefork · elev 1,145 ft
- KCQM — Cook Municipal
Cook · elev 1,329 ft
- KHIB — Range Regional
Hibbing · elev 1,354 ft
Frequently asked questions
How high does density altitude get at KFOZ in summer?
On a typical July afternoon — around 77 °F at the nearest NOAA normals station — density altitude at Bigfork Municipal reaches roughly 2,820 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 KFOZ on an average day?
It swings with the seasons: from roughly −2,038 ft at the coldest month's average temperature to about 2,156 ft at the warmest month's — all from a constant field elevation of 1,351 ft. The month-by-month table above carries the full year.
What is the field elevation of Bigfork Municipal?
1,351 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFOZ (ICAO) / FOZ (FAA), in Bigfork, Minnesota.