Mount Carmel, Illinois · field elev 429 ft
Density Altitude at Mount Carmel Municipal (KAJG)
Mount Carmel Municipal sits at 429 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 2,406 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 | 30.2 | −1,409 ft | 39.1 | −790 ft |
| February | 34.3 | −1,122 ft | 44.0 | −454 ft |
| March | 43.7 | −475 ft | 54.6 | 258 ft |
| April | 54.7 | 264 ft | 66.6 | 1,042 ft |
| May | 65.2 | 952 ft | 76.8 | 1,692 ft |
| June | 74.1 | 1,521 ft | 85.7 | 2,246 ft |
| July | 77.0 | 1,704 ft | 88.3 | 2,406 ft |
| August | 75.2 | 1,591 ft | 87.1 | 2,332 ft |
| September | 68.7 | 1,177 ft | 81.7 | 1,998 ft |
| October | 56.8 | 403 ft | 69.5 | 1,228 ft |
| November | 44.7 | −407 ft | 55.3 | 304 ft |
| December | 34.6 | −1,101 ft | 43.5 | −488 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 KAJG
DENSITY ALTITUDE
Field elevation 429 ft — the air behaves like 2,388 ft.
- PRESSURE ALT
- 430 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 Illinois fields
- KLWV — Lawrenceville-Vincennes International
Lawrenceville · elev 430 ft
- KOLY — Olney-Noble
Olney-Noble · elev 482 ft
- KRSV — Crawford County
Robinson · elev 461 ft
- KFOA — Flora Municipal
Flora · elev 473 ft
- KFWC — Fairfield Municipal
Fairfield · elev 434 ft
- KCUL — Carmi Municipal
Carmi · elev 388 ft
- 1H8 — Casey Municipal
Casey · elev 655 ft
- 2T2 — Percival Springs
Watson · elev 552 ft
Frequently asked questions
How high does density altitude get at KAJG in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Mount Carmel Municipal reaches roughly 2,406 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 KAJG on an average day?
It swings with the seasons: from roughly −1,409 ft at the coldest month's average temperature to about 1,704 ft at the warmest month's — all from a constant field elevation of 429 ft. The month-by-month table above carries the full year.
What is the field elevation of Mount Carmel Municipal?
429 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KAJG (ICAO) / AJG (FAA), in Mount Carmel, Illinois.