Darlington, South Carolina · field elev 166 ft
Density Altitude at Branhams (6J7)
Branhams sits at 166 ft, and even a typical July afternoon (92 °F) only lifts density altitude to about 2,312 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 | 44.3 | −761 ft | 56.5 | 58 ft |
| February | 47.0 | −577 ft | 60.0 | 289 ft |
| March | 53.8 | −121 ft | 67.5 | 777 ft |
| April | 62.4 | 446 ft | 76.3 | 1,338 ft |
| May | 70.8 | 988 ft | 83.2 | 1,770 ft |
| June | 77.9 | 1,439 ft | 89.0 | 2,128 ft |
| July | 81.2 | 1,646 ft | 92.0 | 2,312 ft |
| August | 79.3 | 1,527 ft | 89.8 | 2,177 ft |
| September | 73.9 | 1,186 ft | 84.7 | 1,863 ft |
| October | 63.5 | 518 ft | 75.8 | 1,306 ft |
| November | 53.0 | −174 ft | 66.2 | 693 ft |
| December | 46.6 | −605 ft | 58.6 | 197 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 6J7
DENSITY ALTITUDE
Field elevation 166 ft — the air behaves like 2,312 ft.
- PRESSURE ALT
- 167 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
- 58J — Huggins Meml
Timmonsville · elev 143 ft
- KUDG — Darlington County
Darlington · elev 192 ft
- 2Q0 — Flying W
Hartsville · elev 292 ft
- KFLO — Florence Regional
Florence · elev 147 ft
- KHVS — Hartsville Regional
Hartsville · elev 364 ft
- 52J — Lee County/Butters Field
Bishopville · elev 211 ft
- KBBP — Marlboro County Jetport/H E Avent Field
Bennettsville · elev 147 ft
- 9W9 — Clio Crop Care
Clio · elev 192 ft
Frequently asked questions
How high does density altitude get at 6J7 in summer?
On a typical July afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Branhams reaches roughly 2,312 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 6J7 on an average day?
It swings with the seasons: from roughly −761 ft at the coldest month's average temperature to about 1,646 ft at the warmest month's — all from a constant field elevation of 166 ft. The month-by-month table above carries the full year.
What is the field elevation of Branhams?
166 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 6J7 (FAA), in Darlington, South Carolina.