Mackinac Island, Michigan · field elev 741 ft
Density Altitude at Mackinac Island (KMCD)
Mackinac Island sits at 741 ft, and even a typical July afternoon (76 °F) only lifts density altitude to about 1,992 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 | 17.9 | −1,897 ft | 24.6 | −1,415 ft |
| February | 18.0 | −1,889 ft | 25.9 | −1,323 ft |
| March | 26.6 | −1,273 ft | 35.0 | −684 ft |
| April | 38.1 | −470 ft | 46.8 | 123 ft |
| May | 49.5 | 304 ft | 59.0 | 933 ft |
| June | 60.5 | 1,031 ft | 70.2 | 1,656 ft |
| July | 66.3 | 1,406 ft | 75.5 | 1,992 ft |
| August | 65.5 | 1,355 ft | 74.8 | 1,948 ft |
| September | 58.7 | 913 ft | 67.8 | 1,503 ft |
| October | 47.1 | 143 ft | 55.0 | 670 ft |
| November | 35.6 | −643 ft | 41.7 | −223 ft |
| December | 25.8 | −1,330 ft | 31.7 | −914 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 KMCD
DENSITY ALTITUDE
Field elevation 741 ft — the air behaves like 2,023 ft.
- PRESSURE ALT
- 742 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
- 83D — Mackinac County
St Ignace · elev 624 ft
- 6Y1 — Bois Blanc Island
Bois Blanc Island · elev 664 ft
- KSLH — Cheboygan County
Cheboygan · elev 640 ft
- 5Y1 — Albert J Lindberg
Hessel · elev 760 ft
- KPLN — Pellston Regional/Emmet County
Pellston · elev 721 ft
- Y30 — Pbeaaye
Topinabee · elev 690 ft
- KCIU — Chippewa County International
Sault Ste Marie · elev 799 ft
- 2M7 — Hoffman'S Black Mountain Aerodrome
Cheboygan · elev 677 ft
Frequently asked questions
How high does density altitude get at KMCD in summer?
On a typical July afternoon — around 76 °F at the nearest NOAA normals station — density altitude at Mackinac Island reaches roughly 1,992 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 KMCD on an average day?
It swings with the seasons: from roughly −1,897 ft at the coldest month's average temperature to about 1,406 ft at the warmest month's — all from a constant field elevation of 741 ft. The month-by-month table above carries the full year.
What is the field elevation of Mackinac Island?
741 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMCD (ICAO) / MCD (FAA), in Mackinac Island, Michigan.