Decatur, Alabama · field elev 592 ft
Density Altitude at Pryor Field Regional (KDCU)
Pryor Field Regional sits at 592 ft, and even a typical July afternoon (90 °F) only lifts density altitude to about 2,696 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 | 41.4 | −429 ft | 50.7 | 200 ft |
| February | 45.3 | −164 ft | 55.4 | 512 ft |
| March | 52.7 | 333 ft | 63.7 | 1,055 ft |
| April | 61.6 | 919 ft | 73.0 | 1,651 ft |
| May | 69.9 | 1,454 ft | 80.8 | 2,141 ft |
| June | 77.1 | 1,910 ft | 87.6 | 2,562 ft |
| July | 79.7 | 2,073 ft | 89.8 | 2,696 ft |
| August | 78.8 | 2,017 ft | 89.8 | 2,696 ft |
| September | 73.1 | 1,658 ft | 85.1 | 2,408 ft |
| October | 62.0 | 945 ft | 74.5 | 1,746 ft |
| November | 50.8 | 206 ft | 62.3 | 964 ft |
| December | 44.1 | −245 ft | 53.6 | 393 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 KDCU
DENSITY ALTITUDE
Field elevation 592 ft — the air behaves like 2,708 ft.
- PRESSURE ALT
- 593 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
- KHSV — Huntsville International-Carl T Jones Field
Huntsville · elev 629 ft
- 5M0 — Hartselle/Morgan County Regional
Hartselle · elev 629 ft
- 9A4 — Courtland
Courtland · elev 588 ft
- M38 — Hazel Green
Hazel Green · elev 814 ft
- KMDQ — Huntsville Exec Tom Sharp Jr Field
Huntsville · elev 763 ft
- KCMD — Cullman Regional/Folsom Field
Cullman · elev 970 ft
- 3M5 — Moontown
Huntsville · elev 655 ft
- 2A8 — Addison
Addison · elev 786 ft
Frequently asked questions
How high does density altitude get at KDCU in summer?
On a typical July afternoon — around 90 °F at the nearest NOAA normals station — density altitude at Pryor Field Regional reaches roughly 2,696 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 KDCU on an average day?
It swings with the seasons: from roughly −429 ft at the coldest month's average temperature to about 2,073 ft at the warmest month's — all from a constant field elevation of 592 ft. The month-by-month table above carries the full year.
What is the field elevation of Pryor Field Regional?
592 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KDCU (ICAO) / DCU (FAA), in Decatur, Alabama.