Lake Isabella, Michigan · field elev 886 ft
Density Altitude at Lake Isabella/Cal Brewer Meml (D15)
Lake Isabella/Cal Brewer Meml sits at 886 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 2,680 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 | 22.7 | −1,369 ft | 29.5 | −887 ft |
| February | 24.4 | −1,248 ft | 32.3 | −691 ft |
| March | 33.1 | −635 ft | 42.7 | 25 ft |
| April | 45.1 | 188 ft | 56.2 | 928 ft |
| May | 57.6 | 1,020 ft | 69.4 | 1,783 ft |
| June | 68.0 | 1,694 ft | 79.5 | 2,420 ft |
| July | 72.2 | 1,961 ft | 83.7 | 2,680 ft |
| August | 70.2 | 1,834 ft | 81.5 | 2,544 ft |
| September | 62.6 | 1,346 ft | 74.0 | 2,075 ft |
| October | 50.3 | 537 ft | 60.2 | 1,190 ft |
| November | 38.3 | −276 ft | 45.8 | 235 ft |
| December | 28.6 | −950 ft | 34.8 | −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 D15
DENSITY ALTITUDE
Field elevation 886 ft — the air behaves like 2,699 ft.
- PRESSURE ALT
- 887 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
- D11 — Ojibwa Airpark
Weidman · elev 959 ft
- 53W — Woodruff Lake
Winn · elev 938 ft
- MI1 — Denton Farms
Clare · elev 851 ft
- KMOP — Mount Pleasant Municipal
Mount Pleasant · elev 755 ft
- 27C — Mecosta Morton
Mecosta · elev 1,022 ft
- 0C5 — Canadian Lakes
Mecosta · elev 960 ft
- 48D — Clare Municipal
Clare · elev 856 ft
- 68R — Hamp
Elwell · elev 825 ft
Frequently asked questions
How high does density altitude get at D15 in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Lake Isabella/Cal Brewer Meml reaches roughly 2,680 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 D15 on an average day?
It swings with the seasons: from roughly −1,369 ft at the coldest month's average temperature to about 1,961 ft at the warmest month's — all from a constant field elevation of 886 ft. The month-by-month table above carries the full year.
What is the field elevation of Lake Isabella/Cal Brewer Meml?
886 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is D15 (FAA), in Lake Isabella, Michigan.