Mount Pleasant, South Carolina · field elev 12 ft
Density Altitude at Mt Pleasant Regional-Faison Field (KLRO)
Mt Pleasant Regional-Faison Field sits at 12 ft, and even a typical July afternoon (91 °F) only lifts density altitude to about 2,069 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 | 47.8 | −714 ft | 59.2 | 46 ft |
| February | 50.2 | −553 ft | 61.4 | 191 ft |
| March | 55.9 | −172 ft | 67.1 | 561 ft |
| April | 64.1 | 367 ft | 74.8 | 1,054 ft |
| May | 72.7 | 921 ft | 82.2 | 1,520 ft |
| June | 78.9 | 1,313 ft | 87.9 | 1,873 ft |
| July | 82.0 | 1,507 ft | 91.1 | 2,069 ft |
| August | 81.0 | 1,445 ft | 90.0 | 2,002 ft |
| September | 76.8 | 1,181 ft | 85.9 | 1,750 ft |
| October | 67.9 | 613 ft | 78.3 | 1,275 ft |
| November | 58.1 | −26 ft | 69.2 | 697 ft |
| December | 51.0 | −499 ft | 62.1 | 236 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 KLRO
DENSITY ALTITUDE
Field elevation 12 ft — the air behaves like 2,063 ft.
- PRESSURE ALT
- 13 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 South Carolina fields
- KCHS — Charleston AFB/International
Charleston · elev 46 ft
- KJZI — Charleston Exec
Charleston · elev 19 ft
- KMKS — Berkeley County
Moncks Corner · elev 74 ft
- KDYB — Summerville
Summerville · elev 56 ft
- KGGE — Georgetown County
Georgetown · elev 40 ft
- KPHH — Robert F Swinnie
Andrews · elev 26 ft
- 5J5 — Holly Hill
Holly Hill · elev 96 ft
- 6J2 — St George
St George · elev 85 ft
Frequently asked questions
How high does density altitude get at KLRO in summer?
On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Mt Pleasant Regional-Faison Field reaches roughly 2,069 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 KLRO on an average day?
It swings with the seasons: from roughly −714 ft at the coldest month's average temperature to about 1,507 ft at the warmest month's — all from a constant field elevation of 12 ft. The month-by-month table above carries the full year.
What is the field elevation of Mt Pleasant Regional-Faison Field?
12 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KLRO (ICAO) / LRO (FAA), in Mount Pleasant, South Carolina.