Clayton, Alabama · field elev 435 ft
Density Altitude at Clayton Municipal (11A)
Clayton Municipal sits at 435 ft, and even a typical July afternoon (91 °F) only lifts density altitude to about 2,597 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 | 47.7 | −196 ft | 58.3 | 509 ft |
| February | 51.3 | 45 ft | 62.5 | 784 ft |
| March | 57.9 | 483 ft | 69.8 | 1,255 ft |
| April | 64.4 | 907 ft | 76.5 | 1,680 ft |
| May | 72.4 | 1,421 ft | 84.0 | 2,148 ft |
| June | 78.8 | 1,825 ft | 88.8 | 2,444 ft |
| July | 81.3 | 1,981 ft | 91.3 | 2,597 ft |
| August | 80.7 | 1,943 ft | 90.4 | 2,542 ft |
| September | 76.1 | 1,655 ft | 86.1 | 2,278 ft |
| October | 66.7 | 1,056 ft | 77.9 | 1,768 ft |
| November | 56.5 | 391 ft | 68.3 | 1,159 ft |
| December | 50.1 | −35 ft | 60.3 | 640 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 11A
DENSITY ALTITUDE
Field elevation 435 ft — the air behaves like 2,578 ft.
- PRESSURE ALT
- 436 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 Alabama fields
- KEUF — Weedon Field
Eufaula · elev 285 ft
- 0J0 — Abbeville Municipal
Abbeville · elev 468 ft
- 07A — Franklin Field
Union Springs · elev 301 ft
- KTOI — Troy Municipal At N Kenneth Campbell Field
Troy · elev 397 ft
- 71J — Ozark/Blackwell Field
Ozark · elev 358 ft
- KHDL — Headland Municipal
Headland · elev 359 ft
- KDHN — Dothan Regional
Dothan · elev 401 ft
- 06A — Moton Field Municipal
Tuskegee · elev 264 ft
Frequently asked questions
How high does density altitude get at 11A in summer?
On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Clayton Municipal reaches roughly 2,597 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 11A on an average day?
It swings with the seasons: from roughly −196 ft at the coldest month's average temperature to about 1,981 ft at the warmest month's — all from a constant field elevation of 435 ft. The month-by-month table above carries the full year.
What is the field elevation of Clayton Municipal?
435 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 11A (FAA), in Clayton, Alabama.