Creola, Alabama · field elev 8 ft
Density Altitude at Mark Reynolds/North Mobile County (15A)
Mark Reynolds/North Mobile County sits at 8 ft, and even a typical July afternoon (90 °F) only lifts density altitude to about 1,997 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 | 51.0 | −504 ft | 61.0 | 159 ft |
| February | 54.5 | −270 ft | 64.7 | 401 ft |
| March | 60.8 | 146 ft | 71.4 | 833 ft |
| April | 67.0 | 550 ft | 77.3 | 1,208 ft |
| May | 74.4 | 1,024 ft | 84.1 | 1,633 ft |
| June | 80.0 | 1,377 ft | 88.5 | 1,905 ft |
| July | 81.8 | 1,490 ft | 90.0 | 1,997 ft |
| August | 81.5 | 1,471 ft | 89.9 | 1,991 ft |
| September | 78.1 | 1,258 ft | 86.9 | 1,807 ft |
| October | 68.9 | 672 ft | 79.1 | 1,321 ft |
| November | 59.2 | 41 ft | 69.6 | 717 ft |
| December | 53.0 | −370 ft | 62.7 | 271 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 15A
DENSITY ALTITUDE
Field elevation 8 ft — the air behaves like 1,997 ft.
- PRESSURE ALT
- 9 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
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- KMOB — Mobile Regional
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- KCQF — H L Sonny Callahan
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- 2R5 — St Elmo
St Elmo · elev 132 ft
- 0R1 — Atmore Municipal
Atmore · elev 286 ft
- 5R7 — Roy E Ray
Bayou La Batre · elev 87 ft
- 5R4 — Holk Field At Foley Municipal
Foley · elev 74 ft
Frequently asked questions
How high does density altitude get at 15A in summer?
On a typical July afternoon — around 90 °F at the nearest NOAA normals station — density altitude at Mark Reynolds/North Mobile County reaches roughly 1,997 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 15A on an average day?
It swings with the seasons: from roughly −504 ft at the coldest month's average temperature to about 1,490 ft at the warmest month's — all from a constant field elevation of 8 ft. The month-by-month table above carries the full year.
What is the field elevation of Mark Reynolds/North Mobile County?
8 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 15A (FAA), in Creola, Alabama.