Lancaster, South Carolina · field elev 578 ft
Density Altitude at Kirk Air Base (T73)
Kirk Air Base sits at 578 ft, and even a typical July afternoon (91 °F) only lifts density altitude to about 2,777 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 | 43.6 | −296 ft | 54.7 | 448 ft |
| February | 46.7 | −86 ft | 58.7 | 712 ft |
| March | 53.4 | 362 ft | 65.5 | 1,154 ft |
| April | 62.3 | 947 ft | 74.5 | 1,729 ft |
| May | 70.3 | 1,462 ft | 81.3 | 2,155 ft |
| June | 77.3 | 1,905 ft | 87.8 | 2,557 ft |
| July | 81.1 | 2,143 ft | 91.4 | 2,777 ft |
| August | 79.2 | 2,024 ft | 89.4 | 2,655 ft |
| September | 73.9 | 1,691 ft | 84.1 | 2,329 ft |
| October | 63.7 | 1,038 ft | 75.6 | 1,799 ft |
| November | 52.6 | 309 ft | 64.8 | 1,109 ft |
| December | 46.3 | −113 ft | 57.1 | 607 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 T73
DENSITY ALTITUDE
Field elevation 578 ft — the air behaves like 2,752 ft.
- PRESSURE ALT
- 579 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
- KLKR — Lancaster County-Mc Whirter Field
Lancaster · elev 486 ft
- KPYG — Pageland
Pageland · elev 575 ft
- KCDN — Woodward Field
Camden · elev 303 ft
- KDCM — Chester Catawba Regional
Chester · elev 657 ft
- KUZA — Rock Hill/York County/Bryant Field
Rock Hill · elev 666 ft
- KFDW — Fairfield County
Winnsboro · elev 578 ft
- KHVS — Hartsville Regional
Hartsville · elev 364 ft
- 2Q0 — Flying W
Hartsville · elev 292 ft
Frequently asked questions
How high does density altitude get at T73 in summer?
On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Kirk Air Base reaches roughly 2,777 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 T73 on an average day?
It swings with the seasons: from roughly −296 ft at the coldest month's average temperature to about 2,143 ft at the warmest month's — all from a constant field elevation of 578 ft. The month-by-month table above carries the full year.
What is the field elevation of Kirk Air Base?
578 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is T73 (FAA), in Lancaster, South Carolina.