Holly Hill, South Carolina · field elev 96 ft
Density Altitude at Holly Hill (5J5)
Holly Hill sits at 96 ft, and even a typical July afternoon (91 °F) only lifts density altitude to about 2,178 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 | 46.4 | −705 ft | 58.2 | 84 ft |
| February | 49.0 | −529 ft | 61.5 | 301 ft |
| March | 55.4 | −101 ft | 68.5 | 755 ft |
| April | 63.2 | 412 ft | 76.3 | 1,252 ft |
| May | 71.1 | 922 ft | 83.1 | 1,679 ft |
| June | 77.9 | 1,353 ft | 88.4 | 2,006 ft |
| July | 80.7 | 1,529 ft | 91.2 | 2,178 ft |
| August | 80.0 | 1,485 ft | 89.9 | 2,098 ft |
| September | 74.7 | 1,151 ft | 84.8 | 1,784 ft |
| October | 64.9 | 522 ft | 76.7 | 1,277 ft |
| November | 54.5 | −161 ft | 67.3 | 678 ft |
| December | 48.7 | −549 ft | 60.4 | 229 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 5J5
DENSITY ALTITUDE
Field elevation 96 ft — the air behaves like 2,166 ft.
- PRESSURE ALT
- 97 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
- 6J2 — St George
St George · elev 85 ft
- KDYB — Summerville
Summerville · elev 56 ft
- KMKS — Berkeley County
Moncks Corner · elev 74 ft
- KMNI — Santee Cooper Regional
Manning · elev 103 ft
- KOGB — Orangeburg Municipal
Orangeburg · elev 195 ft
- KRBW — Lowcountry Regional
Walterboro · elev 101 ft
- 1DS — Dry Swamp
Orangeburg · elev 180 ft
- KCHS — Charleston AFB/International
Charleston · elev 46 ft
Frequently asked questions
How high does density altitude get at 5J5 in summer?
On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Holly Hill reaches roughly 2,178 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 5J5 on an average day?
It swings with the seasons: from roughly −705 ft at the coldest month's average temperature to about 1,529 ft at the warmest month's — all from a constant field elevation of 96 ft. The month-by-month table above carries the full year.
What is the field elevation of Holly Hill?
96 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 5J5 (FAA), in Holly Hill, South Carolina.