Bellaire, Michigan · field elev 623 ft
Density Altitude at Antrim County (KACB)
Antrim County sits at 623 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,291 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 | −1,699 ft | 30.4 | −1,153 ft |
| February | 23.6 | −1,635 ft | 32.9 | −978 ft |
| March | 32.0 | −1,041 ft | 42.9 | −288 ft |
| April | 43.6 | −240 ft | 56.0 | 590 ft |
| May | 55.7 | 570 ft | 70.0 | 1,498 ft |
| June | 65.0 | 1,177 ft | 79.2 | 2,080 ft |
| July | 68.9 | 1,428 ft | 82.6 | 2,291 ft |
| August | 67.4 | 1,332 ft | 80.9 | 2,186 ft |
| September | 60.6 | 892 ft | 73.7 | 1,734 ft |
| October | 49.4 | 151 ft | 60.3 | 872 ft |
| November | 38.4 | −596 ft | 46.5 | −44 ft |
| December | 28.8 | −1,265 ft | 35.4 | −804 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 KACB
DENSITY ALTITUDE
Field elevation 623 ft — the air behaves like 2,316 ft.
- PRESSURE ALT
- 624 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
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- AIR DENSITY
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- WATER · GRAINS/LB
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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
- D90 — Mancelona Municipal
Mancelona · elev 1,133 ft
- 59M — Torchport
Eastport · elev 640 ft
- Y94 — East Jordan City
East Jordan · elev 641 ft
- 4Y4 — Lakes Of The North
Gaylord · elev 1,287 ft
- KBFA — Boyne Mountain
Boyne Falls · elev 719 ft
- Y89 — Kalkaska City
Kalkaska · elev 1,029 ft
- N98 — Boyne City Municipal
Boyne City · elev 660 ft
- 5D5 — Woolsey Meml
Northport · elev 628 ft
Frequently asked questions
How high does density altitude get at KACB in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Antrim County reaches roughly 2,291 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 KACB on an average day?
It swings with the seasons: from roughly −1,699 ft at the coldest month's average temperature to about 1,428 ft at the warmest month's — all from a constant field elevation of 623 ft. The month-by-month table above carries the full year.
What is the field elevation of Antrim County?
623 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KACB (ICAO) / ACB (FAA), in Bellaire, Michigan.