Jackson, Kentucky · field elev 1,381 ft
Density Altitude at Julian Carroll (KJKL)
Julian Carroll sits at 1,381 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 3,363 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 | 35.8 | 169 ft | 44.2 | 741 ft |
| February | 39.7 | 436 ft | 48.8 | 1,050 ft |
| March | 47.8 | 983 ft | 58.0 | 1,657 ft |
| April | 58.2 | 1,670 ft | 69.2 | 2,378 ft |
| May | 65.6 | 2,148 ft | 75.7 | 2,788 ft |
| June | 72.6 | 2,593 ft | 82.2 | 3,191 ft |
| July | 75.7 | 2,788 ft | 85.0 | 3,363 ft |
| August | 74.9 | 2,738 ft | 84.4 | 3,327 ft |
| September | 69.1 | 2,371 ft | 79.0 | 2,993 ft |
| October | 58.7 | 1,702 ft | 68.8 | 2,352 ft |
| November | 48.1 | 1,003 ft | 57.4 | 1,618 ft |
| December | 39.7 | 436 ft | 47.6 | 970 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 KJKL
DENSITY ALTITUDE
Field elevation 1,381 ft — the air behaves like 3,363 ft.
- PRESSURE ALT
- 1,382 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
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Frequently asked questions
How high does density altitude get at KJKL in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Julian Carroll reaches roughly 3,363 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 KJKL on an average day?
It swings with the seasons: from roughly 169 ft at the coldest month's average temperature to about 2,788 ft at the warmest month's — all from a constant field elevation of 1,381 ft. The month-by-month table above carries the full year.
What is the field elevation of Julian Carroll?
1,381 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KJKL (ICAO) / JKL (FAA), in Jackson, Kentucky.