Wayland, Michigan · field elev 740 ft
Density Altitude at Calkins Field (41C)
Calkins Field sits at 740 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,384 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 | 22.9 | −1,538 ft | 30.2 | −1,021 ft |
| February | 24.4 | −1,431 ft | 32.8 | −839 ft |
| March | 33.7 | −776 ft | 43.4 | −109 ft |
| April | 45.9 | 61 ft | 57.5 | 833 ft |
| May | 56.8 | 787 ft | 68.3 | 1,534 ft |
| June | 66.7 | 1,431 ft | 77.9 | 2,141 ft |
| July | 69.8 | 1,629 ft | 81.8 | 2,384 ft |
| August | 68.9 | 1,572 ft | 80.1 | 2,279 ft |
| September | 61.6 | 1,101 ft | 73.2 | 1,845 ft |
| October | 50.5 | 370 ft | 60.9 | 1,056 ft |
| November | 38.9 | −416 ft | 46.9 | 128 ft |
| December | 28.7 | −1,126 ft | 35.1 | −679 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 41C
DENSITY ALTITUDE
Field elevation 740 ft — the air behaves like 2,397 ft.
- PRESSURE ALT
- 741 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
- 35D — Padgham Field
Allegan · elev 706 ft
- KGRR — Gerald R Ford International
Grand Rapids · elev 794 ft
- 9D9 — Hastings
Hastings · elev 800 ft
- 61D — Virgil L Williams Plainwell Municipal
Plainwell · elev 722 ft
- Z98 — Ottawa Exec
Zeeland · elev 756 ft
- 08C — Riverview
Jenison · elev 603 ft
- KBIV — West Michigan Regional
Holland · elev 698 ft
- 24C — Lowell City
Lowell · elev 681 ft
Frequently asked questions
How high does density altitude get at 41C in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Calkins Field reaches roughly 2,384 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 41C on an average day?
It swings with the seasons: from roughly −1,538 ft at the coldest month's average temperature to about 1,629 ft at the warmest month's — all from a constant field elevation of 740 ft. The month-by-month table above carries the full year.
What is the field elevation of Calkins Field?
740 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 41C (FAA), in Wayland, Michigan.