Boyne City, Michigan · field elev 660 ft
Density Altitude at Boyne City Municipal (N98)
Boyne City Municipal sits at 660 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 2,392 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 | 21.2 | −1,760 ft | 28.4 | −1,247 ft |
| February | 22.5 | −1,667 ft | 31.5 | −1,029 ft |
| March | 31.5 | −1,029 ft | 42.4 | −276 ft |
| April | 43.6 | −195 ft | 55.8 | 623 ft |
| May | 56.7 | 682 ft | 70.2 | 1,557 ft |
| June | 66.5 | 1,320 ft | 79.7 | 2,156 ft |
| July | 70.8 | 1,595 ft | 83.5 | 2,392 ft |
| August | 69.4 | 1,506 ft | 81.7 | 2,280 ft |
| September | 62.1 | 1,035 ft | 73.8 | 1,785 ft |
| October | 49.6 | 210 ft | 59.3 | 853 ft |
| November | 37.5 | −612 ft | 44.6 | −127 ft |
| December | 27.4 | −1,318 ft | 33.4 | −897 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 N98
DENSITY ALTITUDE
Field elevation 660 ft — the air behaves like 2,423 ft.
- PRESSURE ALT
- 661 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
- KBFA — Boyne Mountain
Boyne Falls · elev 719 ft
- Y94 — East Jordan City
East Jordan · elev 641 ft
- KCVX — Charlevoix Municipal
Charlevoix · elev 669 ft
- KMGN — Harbor Springs
Harbor Springs · elev 686 ft
- KACB — Antrim County
Bellaire · elev 623 ft
- KGLR — Gaylord Regional
Gaylord · elev 1,328 ft
- D90 — Mancelona Municipal
Mancelona · elev 1,133 ft
- 59M — Torchport
Eastport · elev 640 ft
Frequently asked questions
How high does density altitude get at N98 in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Boyne City Municipal reaches roughly 2,392 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 N98 on an average day?
It swings with the seasons: from roughly −1,760 ft at the coldest month's average temperature to about 1,595 ft at the warmest month's — all from a constant field elevation of 660 ft. The month-by-month table above carries the full year.
What is the field elevation of Boyne City Municipal?
660 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is N98 (FAA), in Boyne City, Michigan.