Plymouth, Indiana · field elev 800 ft
Density Altitude at Plymouth Municipal (C65)
Plymouth Municipal sits at 800 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 2,581 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 | 24.1 | −1,377 ft | 31.4 | −861 ft |
| February | 26.9 | −1,178 ft | 35.4 | −583 ft |
| March | 37.4 | −445 ft | 47.1 | 216 ft |
| April | 48.9 | 337 ft | 59.8 | 1,058 ft |
| May | 60.3 | 1,090 ft | 71.2 | 1,792 ft |
| June | 70.0 | 1,716 ft | 80.6 | 2,383 ft |
| July | 73.2 | 1,919 ft | 83.8 | 2,581 ft |
| August | 71.5 | 1,811 ft | 81.9 | 2,464 ft |
| September | 64.8 | 1,382 ft | 76.1 | 2,102 ft |
| October | 52.8 | 597 ft | 63.3 | 1,285 ft |
| November | 40.1 | −259 ft | 48.4 | 303 ft |
| December | 29.8 | −974 ft | 36.7 | −493 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 C65
DENSITY ALTITUDE
Field elevation 800 ft — the air behaves like 2,594 ft.
- PRESSURE ALT
- 801 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 Indiana fields
- KOXI — Starke County
Knox · elev 685 ft
- C92 — Mentone
Mentone · elev 860 ft
- C03 — Nappanee Municipal
Nappanee · elev 860 ft
- KRCR — Fulton County
Rochester · elev 790 ft
- KSBN — South Bend International
South Bend · elev 798 ft
- 3C1 — Mishawaka Pilots Club
Elkhart · elev 755 ft
- KASW — Warsaw Municipal
Warsaw · elev 850 ft
- KRWN — Arens Field
Winamac · elev 708 ft
Frequently asked questions
How high does density altitude get at C65 in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Plymouth Municipal reaches roughly 2,581 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 C65 on an average day?
It swings with the seasons: from roughly −1,377 ft at the coldest month's average temperature to about 1,919 ft at the warmest month's — all from a constant field elevation of 800 ft. The month-by-month table above carries the full year.
What is the field elevation of Plymouth Municipal?
800 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is C65 (FAA), in Plymouth, Indiana.