Junction, Texas · field elev 1,754 ft
Density Altitude at Kimble County (KJCT)
Kimble County sits at 1,754 ft, and even a typical August afternoon (96 °F) only lifts density altitude to about 4,457 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 | 47.8 | 1,445 ft | 61.9 | 2,369 ft |
| February | 52.3 | 1,743 ft | 66.2 | 2,644 ft |
| March | 59.4 | 2,207 ft | 73.1 | 3,081 ft |
| April | 66.9 | 2,689 ft | 80.9 | 3,566 ft |
| May | 74.8 | 3,187 ft | 87.0 | 3,940 ft |
| June | 81.1 | 3,578 ft | 92.7 | 4,284 ft |
| July | 83.5 | 3,726 ft | 95.3 | 4,440 ft |
| August | 83.2 | 3,708 ft | 95.6 | 4,457 ft |
| September | 76.6 | 3,300 ft | 88.9 | 4,055 ft |
| October | 67.2 | 2,708 ft | 80.8 | 3,560 ft |
| November | 56.2 | 1,999 ft | 69.8 | 2,873 ft |
| December | 48.6 | 1,498 ft | 62.9 | 2,433 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 KJCT
DENSITY ALTITUDE
Field elevation 1,754 ft — the air behaves like 4,481 ft.
- PRESSURE ALT
- 1,755 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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- 49R — Real County
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- KSOA — Sonora Municipal
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- KBBD — Curtis Field
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- T82 — Gillespie County
Fredericksburg · elev 1,695 ft
Frequently asked questions
How high does density altitude get at KJCT in summer?
On a typical August afternoon — around 96 °F at the nearest NOAA normals station — density altitude at Kimble County reaches roughly 4,457 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 KJCT on an average day?
It swings with the seasons: from roughly 1,445 ft at the coldest month's average temperature to about 3,726 ft at the warmest month's — all from a constant field elevation of 1,754 ft. The month-by-month table above carries the full year.
What is the field elevation of Kimble County?
1,754 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KJCT (ICAO) / JCT (FAA), in Junction, Texas.