Pullman, Michigan · field elev 635 ft
Density Altitude at Walle Field (M86)
Walle Field sits at 635 ft, and even a typical July afternoon (80 °F) only lifts density altitude to about 2,144 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 | 27.8 | −1,321 ft | 33.5 | −921 ft |
| February | 29.8 | −1,180 ft | 35.8 | −761 ft |
| March | 37.4 | −650 ft | 44.8 | −144 ft |
| April | 47.7 | 52 ft | 56.1 | 611 ft |
| May | 58.5 | 769 ft | 67.7 | 1,366 ft |
| June | 67.8 | 1,372 ft | 75.9 | 1,887 ft |
| July | 72.8 | 1,691 ft | 80.0 | 2,144 ft |
| August | 71.6 | 1,615 ft | 79.1 | 2,088 ft |
| September | 65.5 | 1,225 ft | 73.7 | 1,748 ft |
| October | 54.9 | 532 ft | 62.2 | 1,011 ft |
| November | 42.7 | −287 ft | 49.2 | 153 ft |
| December | 33.3 | −935 ft | 38.6 | −568 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 M86
DENSITY ALTITUDE
Field elevation 635 ft — the air behaves like 2,144 ft.
- PRESSURE ALT
- 636 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 Michigan fields
- KLWA — South Haven Area Regional
South Haven · elev 666 ft
- 35D — Padgham Field
Allegan · elev 706 ft
- KBIV — West Michigan Regional
Holland · elev 698 ft
- 40C — Watervliet Municipal
Watervliet · elev 656 ft
- 2C5 — Almena
Paw Paw · elev 748 ft
- 4N0 — Newmans
Kalamazoo · elev 840 ft
- 61D — Virgil L Williams Plainwell Municipal
Plainwell · elev 722 ft
- Z98 — Ottawa Exec
Zeeland · elev 756 ft
Frequently asked questions
How high does density altitude get at M86 in summer?
On a typical July afternoon — around 80 °F at the nearest NOAA normals station — density altitude at Walle Field reaches roughly 2,144 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 M86 on an average day?
It swings with the seasons: from roughly −1,321 ft at the coldest month's average temperature to about 1,691 ft at the warmest month's — all from a constant field elevation of 635 ft. The month-by-month table above carries the full year.
What is the field elevation of Walle Field?
635 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is M86 (FAA), in Pullman, Michigan.