Drummond Island, Michigan · field elev 668 ft
Density Altitude at Drummond Island (KDRM)
Drummond Island sits at 668 ft, and even a typical July afternoon (75 °F) only lifts density altitude to about 1,871 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 | 16.3 | −2,105 ft | 23.9 | −1,557 ft |
| February | 17.2 | −2,039 ft | 25.6 | −1,436 ft |
| March | 25.5 | −1,443 ft | 34.1 | −838 ft |
| April | 37.9 | −575 ft | 45.9 | −29 ft |
| May | 50.4 | 274 ft | 59.3 | 862 ft |
| June | 60.8 | 960 ft | 69.9 | 1,547 ft |
| July | 66.3 | 1,317 ft | 75.0 | 1,871 ft |
| August | 66.0 | 1,297 ft | 74.0 | 1,808 ft |
| September | 58.7 | 823 ft | 66.1 | 1,304 ft |
| October | 46.3 | −2 ft | 52.9 | 440 ft |
| November | 35.2 | −761 ft | 40.9 | −369 ft |
| December | 24.9 | −1,486 ft | 30.9 | −1,061 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 KDRM
DENSITY ALTITUDE
Field elevation 668 ft — the air behaves like 1,871 ft.
- PRESSURE ALT
- 669 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
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Frequently asked questions
How high does density altitude get at KDRM in summer?
On a typical July afternoon — around 75 °F at the nearest NOAA normals station — density altitude at Drummond Island reaches roughly 1,871 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 KDRM on an average day?
It swings with the seasons: from roughly −2,105 ft at the coldest month's average temperature to about 1,317 ft at the warmest month's — all from a constant field elevation of 668 ft. The month-by-month table above carries the full year.
What is the field elevation of Drummond Island?
668 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KDRM (ICAO) / DRM (FAA), in Drummond Island, Michigan.