Williamston, North Carolina · field elev 75 ft
Density Altitude at Martin County (KMCZ)
Martin County sits at 75 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 1,987 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 | 42.5 | −997 ft | 51.8 | −367 ft |
| February | 45.2 | −813 ft | 54.9 | −160 ft |
| March | 51.8 | −367 ft | 62.0 | 308 ft |
| April | 60.8 | 229 ft | 71.4 | 915 ft |
| May | 68.5 | 729 ft | 78.2 | 1,346 ft |
| June | 76.3 | 1,226 ft | 85.3 | 1,789 ft |
| July | 79.9 | 1,453 ft | 88.5 | 1,987 ft |
| August | 78.4 | 1,359 ft | 86.9 | 1,888 ft |
| September | 73.0 | 1,017 ft | 81.8 | 1,572 ft |
| October | 62.6 | 347 ft | 73.0 | 1,017 ft |
| November | 52.7 | −307 ft | 63.1 | 379 ft |
| December | 45.8 | −772 ft | 55.3 | −134 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 KMCZ
DENSITY ALTITUDE
Field elevation 75 ft — the air behaves like 2,018 ft.
- PRESSURE ALT
- 76 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 North Carolina fields
- KPGV — Pitt-Greenville
Greenville · elev 26 ft
- KETC — Tarboro-Edgecombe
Tarboro · elev 53 ft
- KOCW — Washington-Warren
Washington · elev 38 ft
- KPMZ — Plymouth Municipal
Plymouth · elev 36 ft
- 05N — South Oaks Aerodrome
Winterville · elev 50 ft
- 7NC — Donald'S Air Park Inc
Plymouth · elev 18 ft
- N08 — Flanagan Field
Farmville · elev 75 ft
- KASJ — Tri-County At Henry Joyner Field
Ahoskie · elev 67 ft
Frequently asked questions
How high does density altitude get at KMCZ in summer?
On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Martin County reaches roughly 1,987 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 KMCZ on an average day?
It swings with the seasons: from roughly −997 ft at the coldest month's average temperature to about 1,453 ft at the warmest month's — all from a constant field elevation of 75 ft. The month-by-month table above carries the full year.
What is the field elevation of Martin County?
75 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMCZ (ICAO) / MCZ (FAA), in Williamston, North Carolina.