Conway, South Carolina · field elev 35 ft
Density Altitude at Conway-Horry County (KHYW)
Conway-Horry County sits at 35 ft, and even a typical July afternoon (91 °F) only lifts density altitude to about 2,079 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 | 46.7 | −760 ft | 58.1 | 2 ft |
| February | 49.4 | −578 ft | 60.6 | 167 ft |
| March | 55.8 | −150 ft | 68.0 | 648 ft |
| April | 63.8 | 376 ft | 75.8 | 1,146 ft |
| May | 71.6 | 879 ft | 82.6 | 1,573 ft |
| June | 78.2 | 1,297 ft | 87.7 | 1,889 ft |
| July | 81.6 | 1,511 ft | 90.8 | 2,079 ft |
| August | 80.2 | 1,423 ft | 89.1 | 1,975 ft |
| September | 75.4 | 1,121 ft | 84.8 | 1,710 ft |
| October | 65.9 | 512 ft | 76.9 | 1,215 ft |
| November | 56.1 | −130 ft | 68.2 | 661 ft |
| December | 49.6 | −564 ft | 60.6 | 167 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 KHYW
DENSITY ALTITUDE
Field elevation 35 ft — the air behaves like 2,091 ft.
- PRESSURE ALT
- 36 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
- KMYR — Myrtle Beach International
Myrtle Beach · elev 25 ft
- KCRE — Grand Strand
North Myrtle Beach · elev 32 ft
- 5J9 — Twin City
Loris · elev 99 ft
- KMAO — Marion County
Marion · elev 93 ft
- KPHH — Robert F Swinnie
Andrews · elev 26 ft
- 51J — Lake City Municipal Cj Evans Field
Lake City · elev 80 ft
- KGGE — Georgetown County
Georgetown · elev 40 ft
- KFLO — Florence Regional
Florence · elev 147 ft
Frequently asked questions
How high does density altitude get at KHYW in summer?
On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Conway-Horry County reaches roughly 2,079 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 KHYW on an average day?
It swings with the seasons: from roughly −760 ft at the coldest month's average temperature to about 1,511 ft at the warmest month's — all from a constant field elevation of 35 ft. The month-by-month table above carries the full year.
What is the field elevation of Conway-Horry County?
35 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KHYW (ICAO) / HYW (FAA), in Conway, South Carolina.