Samson, Alabama · field elev 200 ft
Density Altitude at Logan Field (1A4)
Logan Field sits at 200 ft, and even a typical July afternoon (92 °F) only lifts density altitude to about 2,372 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 | 48.3 | −447 ft | 61.8 | 449 ft |
| February | 52.2 | −186 ft | 65.9 | 715 ft |
| March | 58.6 | 239 ft | 73.2 | 1,183 ft |
| April | 64.6 | 631 ft | 79.2 | 1,562 ft |
| May | 72.6 | 1,145 ft | 86.6 | 2,022 ft |
| June | 78.6 | 1,524 ft | 90.7 | 2,274 ft |
| July | 80.7 | 1,656 ft | 92.3 | 2,372 ft |
| August | 80.1 | 1,618 ft | 91.5 | 2,323 ft |
| September | 76.2 | 1,373 ft | 88.4 | 2,133 ft |
| October | 66.5 | 754 ft | 80.8 | 1,662 ft |
| November | 56.3 | 87 ft | 71.0 | 1,043 ft |
| December | 50.6 | −293 ft | 64.1 | 598 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 1A4
DENSITY ALTITUDE
Field elevation 200 ft — the air behaves like 2,353 ft.
- PRESSURE ALT
- 201 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
- 33J — Geneva Municipal
Geneva · elev 100 ft
- 0J4 — Florala Municipal
Florala · elev 314 ft
- KEDN — Enterprise Municipal
Enterprise · elev 361 ft
- 14J — Carl Folsom
Elba · elev 258 ft
- 79J — South Alabama Regional At Bill Benton Field
Andalusia · elev 310 ft
- 71J — Ozark/Blackwell Field
Ozark · elev 358 ft
- KDHN — Dothan Regional
Dothan · elev 401 ft
- 04A — Frank Sikes
Luverne · elev 302 ft
Frequently asked questions
How high does density altitude get at 1A4 in summer?
On a typical July afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Logan Field reaches roughly 2,372 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 1A4 on an average day?
It swings with the seasons: from roughly −447 ft at the coldest month's average temperature to about 1,656 ft at the warmest month's — all from a constant field elevation of 200 ft. The month-by-month table above carries the full year.
What is the field elevation of Logan Field?
200 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 1A4 (FAA), in Samson, Alabama.