Palmyra, Missouri · field elev 657 ft
Density Altitude at Rueter Airfield (93M)
Rueter Airfield sits at 657 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 2,616 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 | 27.0 | −1,350 ft | 35.1 | −782 ft |
| February | 31.6 | −1,026 ft | 40.4 | −417 ft |
| March | 41.9 | −314 ft | 51.8 | 354 ft |
| April | 53.6 | 473 ft | 64.4 | 1,181 ft |
| May | 64.1 | 1,161 ft | 74.1 | 1,801 ft |
| June | 73.6 | 1,769 ft | 83.4 | 2,382 ft |
| July | 77.4 | 2,008 ft | 87.2 | 2,616 ft |
| August | 75.7 | 1,902 ft | 85.6 | 2,518 ft |
| September | 68.0 | 1,412 ft | 78.9 | 2,102 ft |
| October | 56.0 | 632 ft | 66.6 | 1,322 ft |
| November | 43.2 | −225 ft | 52.5 | 400 ft |
| December | 32.3 | −977 ft | 40.2 | −430 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 93M
DENSITY ALTITUDE
Field elevation 657 ft — the air behaves like 2,604 ft.
- PRESSURE ALT
- 658 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 Missouri fields
- KHAE — Hannibal Regional
Hannibal · elev 769 ft
- K52 — Cpt Ben Smith Airfield/Monroe City
Monroe City · elev 737 ft
- 6M6 — Lewis County Regional
Monticello · elev 675 ft
- 6K2 — Shelby County
Shelbyville · elev 760 ft
- H19 — Bowling Green Municipal
Bowling Green · elev 891 ft
- 0H7 — Kahoka Municipal
Kahoka · elev 700 ft
- K89 — Macon-Fower Meml
Macon · elev 878 ft
- KMYJ — Mexico Meml
Mexico · elev 823 ft
Frequently asked questions
How high does density altitude get at 93M in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Rueter Airfield reaches roughly 2,616 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 93M on an average day?
It swings with the seasons: from roughly −1,350 ft at the coldest month's average temperature to about 2,008 ft at the warmest month's — all from a constant field elevation of 657 ft. The month-by-month table above carries the full year.
What is the field elevation of Rueter Airfield?
657 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 93M (FAA), in Palmyra, Missouri.