Joplin, Missouri · field elev 978 ft
Density Altitude at Joplin Regional (KJLN)
Joplin Regional sits at 978 ft, and even a typical July afternoon (90 °F) only lifts density altitude to about 3,196 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 | 34.9 | −396 ft | 44.8 | 282 ft |
| February | 39.4 | −86 ft | 50.0 | 631 ft |
| March | 48.6 | 537 ft | 59.8 | 1,277 ft |
| April | 57.9 | 1,153 ft | 69.2 | 1,883 ft |
| May | 66.5 | 1,711 ft | 77.0 | 2,376 ft |
| June | 75.6 | 2,288 ft | 85.9 | 2,928 ft |
| July | 79.9 | 2,557 ft | 90.3 | 3,196 ft |
| August | 79.0 | 2,501 ft | 90.0 | 3,178 ft |
| September | 70.7 | 1,979 ft | 82.0 | 2,687 ft |
| October | 59.3 | 1,245 ft | 70.7 | 1,979 ft |
| November | 47.8 | 484 ft | 58.4 | 1,186 ft |
| December | 38.1 | −175 ft | 47.8 | 484 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 KJLN
DENSITY ALTITUDE
Field elevation 978 ft — the air behaves like 3,178 ft.
- PRESSURE ALT
- 979 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
- KEOS — Neosho Hugh Robinson
Neosho · elev 1,255 ft
- KLLU — Lamar Municipal
Lamar · elev 1,010 ft
- KHFJ — Monett Regional
Monett · elev 1,316 ft
- MO9 — Kingsley Airfield
Miller · elev 1,272 ft
- 2MO — Mount Vernon Municipal
Mount Vernon · elev 1,244 ft
- 94K — Cassville Municipal
Cassville · elev 1,483 ft
- 2H2 — Jerry Sumners Sr Aurora Municipal
Aurora · elev 1,434 ft
- KNVD — Nevada Municipal
Nevada · elev 892 ft
Frequently asked questions
How high does density altitude get at KJLN in summer?
On a typical July afternoon — around 90 °F at the nearest NOAA normals station — density altitude at Joplin Regional reaches roughly 3,196 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 KJLN on an average day?
It swings with the seasons: from roughly −396 ft at the coldest month's average temperature to about 2,557 ft at the warmest month's — all from a constant field elevation of 978 ft. The month-by-month table above carries the full year.
What is the field elevation of Joplin Regional?
978 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KJLN (ICAO) / JLN (FAA), in Joplin, Missouri.