Maryville, Missouri · field elev 984 ft
Density Altitude at Rankin (78Y)
Rankin sits at 984 ft, and even a typical July afternoon (87 °F) only lifts density altitude to about 2,984 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 | 23.8 | −1,168 ft | 33.8 | −464 ft |
| February | 28.4 | −842 ft | 38.9 | −112 ft |
| March | 40.2 | −23 ft | 51.5 | 738 ft |
| April | 51.2 | 718 ft | 63.2 | 1,505 ft |
| May | 62.4 | 1,454 ft | 73.3 | 2,151 ft |
| June | 72.3 | 2,088 ft | 83.0 | 2,756 ft |
| July | 76.1 | 2,327 ft | 86.7 | 2,984 ft |
| August | 74.0 | 2,195 ft | 85.2 | 2,892 ft |
| September | 66.0 | 1,686 ft | 78.4 | 2,471 ft |
| October | 53.7 | 884 ft | 66.1 | 1,692 ft |
| November | 40.0 | −37 ft | 50.7 | 685 ft |
| December | 28.8 | −814 ft | 38.5 | −140 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 78Y
DENSITY ALTITUDE
Field elevation 984 ft — the air behaves like 3,002 ft.
- PRESSURE ALT
- 985 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
- KEVU — Northwest Missouri Regional
Maryville · elev 1,145 ft
- K19 — Albany Municipal
Albany · elev 891 ft
- K57 — Gould Peterson Municipal
Tarkio · elev 916 ft
- KSTJ — Rosecrans Meml
St Joseph · elev 827 ft
- 75K — Bethany Meml
Bethany · elev 1,035 ft
- KEZZ — Cameron Meml
Cameron · elev 1,040 ft
- 0C1 — Triple R
Dearborn · elev 1,007 ft
- KTRX — Trenton Municipal
Trenton · elev 758 ft
Frequently asked questions
How high does density altitude get at 78Y in summer?
On a typical July afternoon — around 87 °F at the nearest NOAA normals station — density altitude at Rankin reaches roughly 2,984 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 78Y on an average day?
It swings with the seasons: from roughly −1,168 ft at the coldest month's average temperature to about 2,327 ft at the warmest month's — all from a constant field elevation of 984 ft. The month-by-month table above carries the full year.
What is the field elevation of Rankin?
984 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 78Y (FAA), in Maryville, Missouri.