St Joseph, Missouri · field elev 827 ft
Density Altitude at Rosecrans Meml (KSTJ)
Rosecrans Meml sits at 827 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 2,878 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 | 27.3 | −1,116 ft | 37.4 | −411 ft |
| February | 32.0 | −786 ft | 42.8 | −41 ft |
| March | 43.3 | −7 ft | 55.1 | 783 ft |
| April | 53.8 | 697 ft | 65.9 | 1,486 ft |
| May | 64.8 | 1,416 ft | 75.8 | 2,116 ft |
| June | 74.2 | 2,015 ft | 84.7 | 2,670 ft |
| July | 77.7 | 2,235 ft | 88.1 | 2,878 ft |
| August | 75.3 | 2,085 ft | 86.2 | 2,762 ft |
| September | 67.0 | 1,557 ft | 79.7 | 2,360 ft |
| October | 55.3 | 796 ft | 67.8 | 1,608 ft |
| November | 42.0 | −96 ft | 53.4 | 670 ft |
| December | 31.1 | −849 ft | 41.1 | −157 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 KSTJ
DENSITY ALTITUDE
Field elevation 827 ft — the air behaves like 2,872 ft.
- PRESSURE ALT
- 828 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
- 0C1 — Triple R
Dearborn · elev 1,007 ft
- KEZZ — Cameron Meml
Cameron · elev 1,040 ft
- KMCI — Kansas City International
Kansas City · elev 1,027 ft
- 78Y — Rankin
Maryville · elev 984 ft
- KEVU — Northwest Missouri Regional
Maryville · elev 1,145 ft
- 0N0 — Roosterville
Liberty · elev 1,004 ft
- KGPH — Midwest Ntl Air Center
Mosby · elev 777 ft
- K19 — Albany Municipal
Albany · elev 891 ft
Frequently asked questions
How high does density altitude get at KSTJ in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Rosecrans Meml reaches roughly 2,878 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 KSTJ on an average day?
It swings with the seasons: from roughly −1,116 ft at the coldest month's average temperature to about 2,235 ft at the warmest month's — all from a constant field elevation of 827 ft. The month-by-month table above carries the full year.
What is the field elevation of Rosecrans Meml?
827 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KSTJ (ICAO) / STJ (FAA), in St Joseph, Missouri.