Marshfield, Wisconsin · field elev 1,278 ft
Density Altitude at Marshfield Municipal (KMFI)
Marshfield Municipal sits at 1,278 ft, and even a typical July afternoon (80 °F) only lifts density altitude to about 2,905 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 | 14.8 | −1,446 ft | 22.7 | −878 ft |
| February | 18.5 | −1,178 ft | 27.1 | −566 ft |
| March | 30.4 | −334 ft | 39.4 | 288 ft |
| April | 43.6 | 573 ft | 53.9 | 1,261 ft |
| May | 56.0 | 1,399 ft | 67.0 | 2,111 ft |
| June | 65.2 | 1,996 ft | 75.5 | 2,649 ft |
| July | 69.0 | 2,239 ft | 79.6 | 2,905 ft |
| August | 67.3 | 2,130 ft | 77.8 | 2,793 ft |
| September | 59.3 | 1,614 ft | 70.0 | 2,302 ft |
| October | 46.5 | 768 ft | 56.1 | 1,405 ft |
| November | 33.0 | −153 ft | 40.8 | 383 ft |
| December | 20.6 | −1,028 ft | 27.8 | −517 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 KMFI
DENSITY ALTITUDE
Field elevation 1,278 ft — the air behaves like 2,930 ft.
- PRESSURE ALT
- 1,279 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 Wisconsin fields
- KVIQ — Neillsville Municipal
Neillsville · elev 1,238 ft
- KISW — Alexander Field South Wood County
Wisconsin Rapids · elev 1,021 ft
- KCWA — Central Wisconsin
Mosinee · elev 1,277 ft
- KMDZ — Taylor County
Medford · elev 1,478 ft
- KSTE — Stevens Point Municipal
Stevens Point · elev 1,110 ft
- KAUW — Wausau Downtown
Wausau · elev 1,201 ft
- KDAF — Necedah
Necedah · elev 919 ft
- KBCK — Black River Falls Area
Black River Falls · elev 836 ft
Frequently asked questions
How high does density altitude get at KMFI in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Marshfield Municipal reaches roughly 2,905 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 KMFI on an average day?
It swings with the seasons: from roughly −1,446 ft at the coldest month's average temperature to about 2,239 ft at the warmest month's — all from a constant field elevation of 1,278 ft. The month-by-month table above carries the full year.
What is the field elevation of Marshfield Municipal?
1,278 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMFI (ICAO) / MFI (FAA), in Marshfield, Wisconsin.