Courtland, Alabama · field elev 588 ft
Density Altitude at Courtland (9A4)
Courtland sits at 588 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 2,630 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 | 41.0 | −461 ft | 50.7 | 195 ft |
| February | 44.9 | −196 ft | 55.3 | 501 ft |
| March | 52.4 | 308 ft | 63.4 | 1,031 ft |
| April | 60.4 | 836 ft | 72.3 | 1,602 ft |
| May | 68.8 | 1,379 ft | 79.6 | 2,062 ft |
| June | 76.0 | 1,836 ft | 86.2 | 2,471 ft |
| July | 79.4 | 2,049 ft | 88.8 | 2,630 ft |
| August | 78.2 | 1,974 ft | 88.1 | 2,587 ft |
| September | 72.3 | 1,602 ft | 83.4 | 2,298 ft |
| October | 61.3 | 894 ft | 73.1 | 1,653 ft |
| November | 50.3 | 168 ft | 61.7 | 920 ft |
| December | 43.9 | −264 ft | 53.4 | 375 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 9A4
DENSITY ALTITUDE
Field elevation 588 ft — the air behaves like 2,642 ft.
- PRESSURE ALT
- 589 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
- KMSL — Northwest Alabama Regional
Muscle Shoals · elev 551 ft
- KDCU — Pryor Field Regional
Decatur · elev 592 ft
- M22 — Bill Pugh Field
Russellville · elev 718 ft
- 5M0 — Hartselle/Morgan County Regional
Hartselle · elev 629 ft
- 1M4 — Posey Field
Haleyville · elev 930 ft
- 2A8 — Addison
Addison · elev 786 ft
- KHSV — Huntsville International-Carl T Jones Field
Huntsville · elev 629 ft
- KCMD — Cullman Regional/Folsom Field
Cullman · elev 970 ft
Frequently asked questions
How high does density altitude get at 9A4 in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Courtland reaches roughly 2,630 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 9A4 on an average day?
It swings with the seasons: from roughly −461 ft at the coldest month's average temperature to about 2,049 ft at the warmest month's — all from a constant field elevation of 588 ft. The month-by-month table above carries the full year.
What is the field elevation of Courtland?
588 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 9A4 (FAA), in Courtland, Alabama.