Hillsboro, Kansas · field elev 1,434 ft
Density Altitude at Alfred Schroeder Field (M66)
Alfred Schroeder Field sits at 1,434 ft, and even a typical July afternoon (92 °F) only lifts density altitude to about 3,865 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 | 31.1 | −91 ft | 41.0 | 590 ft |
| February | 35.2 | 193 ft | 45.7 | 908 ft |
| March | 45.8 | 915 ft | 56.8 | 1,644 ft |
| April | 55.8 | 1,578 ft | 66.9 | 2,296 ft |
| May | 66.0 | 2,239 ft | 76.5 | 2,902 ft |
| June | 76.2 | 2,884 ft | 86.9 | 3,544 ft |
| July | 81.2 | 3,194 ft | 92.2 | 3,865 ft |
| August | 79.4 | 3,083 ft | 90.7 | 3,775 ft |
| September | 71.1 | 2,563 ft | 82.7 | 3,287 ft |
| October | 58.5 | 1,755 ft | 70.3 | 2,513 ft |
| November | 44.9 | 854 ft | 55.5 | 1,559 ft |
| December | 34.2 | 124 ft | 43.8 | 780 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 M66
DENSITY ALTITUDE
Field elevation 1,434 ft — the air behaves like 3,853 ft.
- PRESSURE ALT
- 1,435 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 Kansas fields
- 17Q — Hiebert Airfield
Goessel · elev 1,520 ft
- 43K — Marion Municipal
Marion · elev 1,390 ft
- 47K — Moundridge Municipal
Moundridge · elev 1,489 ft
- KEWK — Newton-City-County
Newton · elev 1,534 ft
- KMPR — Mc Pherson
Mc Pherson · elev 1,498 ft
- 7KS — Coyote Creek
Furley · elev 1,456 ft
- KHRU — Herington Regional
Herington · elev 1,481 ft
- 9K0 — Cottonwood Falls
Cottonwood Falls · elev 1,273 ft
Frequently asked questions
How high does density altitude get at M66 in summer?
On a typical July afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Alfred Schroeder Field reaches roughly 3,865 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 M66 on an average day?
It swings with the seasons: from roughly −91 ft at the coldest month's average temperature to about 3,194 ft at the warmest month's — all from a constant field elevation of 1,434 ft. The month-by-month table above carries the full year.
What is the field elevation of Alfred Schroeder Field?
1,434 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is M66 (FAA), in Hillsboro, Kansas.