Leitchfield, Kentucky · field elev 782 ft
Density Altitude at Leitchfield-Grayson County (M20)
Leitchfield-Grayson County sits at 782 ft, and even a typical July afternoon (86 °F) only lifts density altitude to about 2,664 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 | 35.7 | −585 ft | 44.0 | −16 ft |
| February | 39.7 | −309 ft | 48.7 | 301 ft |
| March | 48.2 | 268 ft | 58.0 | 918 ft |
| April | 58.4 | 944 ft | 69.0 | 1,630 ft |
| May | 66.4 | 1,463 ft | 76.3 | 2,092 ft |
| June | 73.3 | 1,903 ft | 82.4 | 2,473 ft |
| July | 76.4 | 2,099 ft | 85.5 | 2,664 ft |
| August | 75.8 | 2,061 ft | 85.4 | 2,658 ft |
| September | 69.7 | 1,675 ft | 79.9 | 2,318 ft |
| October | 59.1 | 990 ft | 69.7 | 1,675 ft |
| November | 48.0 | 254 ft | 57.3 | 872 ft |
| December | 39.5 | −323 ft | 47.3 | 207 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 M20
DENSITY ALTITUDE
Field elevation 782 ft — the air behaves like 2,695 ft.
- PRESSURE ALT
- 783 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 Kentucky fields
- 2I3 — Rough River State Park
Falls-Of-Rough · elev 576 ft
- KEKX — Addington Field
Elizabethtown · elev 776 ft
- I93 — Breckinridge County
Hardinsburg · elev 732 ft
- KGLW — Glasgow Municipal
Glasgow · elev 716 ft
- KBWG — Bowling Green-Warren County Regional
Bowling Green · elev 547 ft
- KJQD — Ohio County
Hartford · elev 537 ft
- KY8 — Hancock County/Ron Lewis Field
Lewisport · elev 411 ft
- M21 — Muhlenberg County
Greenville · elev 428 ft
Frequently asked questions
How high does density altitude get at M20 in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Leitchfield-Grayson County reaches roughly 2,664 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 M20 on an average day?
It swings with the seasons: from roughly −585 ft at the coldest month's average temperature to about 2,099 ft at the warmest month's — all from a constant field elevation of 782 ft. The month-by-month table above carries the full year.
What is the field elevation of Leitchfield-Grayson County?
782 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is M20 (FAA), in Leitchfield, Kentucky.