Harrisburg, Pennsylvania · field elev 347 ft
Density Altitude at Capital City (KCXY)
Capital City sits at 347 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 2,263 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 | 32.6 | −1,343 ft | 40.3 | −809 ft |
| February | 34.7 | −1,197 ft | 43.2 | −611 ft |
| March | 43.2 | −611 ft | 52.6 | 23 ft |
| April | 54.1 | 123 ft | 64.9 | 831 ft |
| May | 64.0 | 773 ft | 74.7 | 1,459 ft |
| June | 73.0 | 1,351 ft | 83.2 | 1,991 ft |
| July | 77.5 | 1,635 ft | 87.6 | 2,263 ft |
| August | 75.4 | 1,503 ft | 85.4 | 2,128 ft |
| September | 68.5 | 1,063 ft | 78.6 | 1,704 ft |
| October | 56.7 | 295 ft | 66.7 | 948 ft |
| November | 46.0 | −420 ft | 55.1 | 189 ft |
| December | 37.0 | −1,037 ft | 44.4 | −529 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 KCXY
DENSITY ALTITUDE
Field elevation 347 ft — the air behaves like 2,288 ft.
- PRESSURE ALT
- 348 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 Pennsylvania fields
- KMDT — Harrisburg International
Harrisburg · elev 310 ft
- 2N5 — Kampel
Wellsville · elev 611 ft
- 0P8 — Lazy B Ranch
Dover · elev 476 ft
- 58N — Reigle Field
Palmyra · elev 489 ft
- 07N — Bermudian Valley Airpark
Kralltown · elev 470 ft
- N71 — Donegal Springs Airpark
Mount Joy/Marietta · elev 458 ft
- N94 — Carlisle
Carlisle · elev 510 ft
- KTHV — York
York · elev 495 ft
Frequently asked questions
How high does density altitude get at KCXY in summer?
On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Capital City reaches roughly 2,263 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 KCXY on an average day?
It swings with the seasons: from roughly −1,343 ft at the coldest month's average temperature to about 1,635 ft at the warmest month's — all from a constant field elevation of 347 ft. The month-by-month table above carries the full year.
What is the field elevation of Capital City?
347 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KCXY (ICAO) / CXY (FAA), in Harrisburg, Pennsylvania.