Bayou La Batre, Alabama · field elev 87 ft
Density Altitude at Roy E Ray (5R7)
Roy E Ray sits at 87 ft, and even a typical August afternoon (88 °F) only lifts density altitude to about 1,989 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 | 49.8 | −487 ft | 59.7 | 172 ft |
| February | 53.0 | −272 ft | 63.4 | 414 ft |
| March | 58.6 | 99 ft | 69.2 | 789 ft |
| April | 65.4 | 544 ft | 75.9 | 1,216 ft |
| May | 72.5 | 1,000 ft | 81.6 | 1,574 ft |
| June | 78.1 | 1,355 ft | 86.1 | 1,854 ft |
| July | 80.4 | 1,499 ft | 88.1 | 1,977 ft |
| August | 80.4 | 1,499 ft | 88.3 | 1,989 ft |
| September | 77.1 | 1,292 ft | 85.6 | 1,823 ft |
| October | 68.1 | 718 ft | 78.4 | 1,374 ft |
| November | 58.0 | 60 ft | 68.9 | 770 ft |
| December | 52.0 | −339 ft | 61.6 | 296 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 5R7
DENSITY ALTITUDE
Field elevation 87 ft — the air behaves like 1,971 ft.
- PRESSURE ALT
- 88 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
- 2R5 — St Elmo
St Elmo · elev 132 ft
- 4R9 — Jeremiah Denton
Dauphin Island · elev 5 ft
- KBFM — Mobile International
Mobile · elev 26 ft
- KMOB — Mobile Regional
Mobile · elev 219 ft
- KCQF — H L Sonny Callahan
Fairhope · elev 91 ft
- 5R4 — Holk Field At Foley Municipal
Foley · elev 74 ft
- 15A — Mark Reynolds/North Mobile County
Creola · elev 8 ft
- KJKA — Gulf Shores International/Jack Edwards Field
Gulf Shores · elev 17 ft
Frequently asked questions
How high does density altitude get at 5R7 in summer?
On a typical August afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Roy E Ray reaches roughly 1,989 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 5R7 on an average day?
It swings with the seasons: from roughly −487 ft at the coldest month's average temperature to about 1,499 ft at the warmest month's — all from a constant field elevation of 87 ft. The month-by-month table above carries the full year.
What is the field elevation of Roy E Ray?
87 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 5R7 (FAA), in Bayou La Batre, Alabama.