Doylestown, Pennsylvania · field elev 394 ft
Density Altitude at Doylestown (KDYL)
Doylestown sits at 394 ft, and even a typical July afternoon (86 °F) only lifts density altitude to about 2,197 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 | 31.0 | −1,397 ft | 38.8 | −854 ft |
| February | 33.3 | −1,236 ft | 42.0 | −634 ft |
| March | 40.8 | −716 ft | 50.2 | −79 ft |
| April | 51.9 | 35 ft | 62.7 | 746 ft |
| May | 61.6 | 675 ft | 72.4 | 1,370 ft |
| June | 70.3 | 1,236 ft | 81.0 | 1,912 ft |
| July | 75.4 | 1,560 ft | 85.6 | 2,197 ft |
| August | 73.5 | 1,440 ft | 83.6 | 2,074 ft |
| September | 66.8 | 1,012 ft | 76.9 | 1,655 ft |
| October | 55.2 | 254 ft | 65.1 | 902 ft |
| November | 44.9 | −437 ft | 54.0 | 174 ft |
| December | 35.9 | −1,055 ft | 43.5 | −532 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 KDYL
DENSITY ALTITUDE
Field elevation 394 ft — the air behaves like 2,222 ft.
- PRESSURE ALT
- 395 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
- KCKZ — Pennridge
Perkasie · elev 568 ft
- 9N1 — Vansant
Erwinna · elev 390 ft
- KUKT — Quakertown
Quakertown · elev 525 ft
- KLOM — Wings Field
Philadelphia · elev 302 ft
- KPNE — Northeast Philadelphia
Philadelphia · elev 120 ft
- 7N8 — Butter Valley Golf Port
Bally · elev 500 ft
- KPTW — Heritage Field
Pottstown · elev 308 ft
- KXLL — Allentown Queen City Municipal
Allentown · elev 399 ft
Frequently asked questions
How high does density altitude get at KDYL in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Doylestown reaches roughly 2,197 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 KDYL on an average day?
It swings with the seasons: from roughly −1,397 ft at the coldest month's average temperature to about 1,560 ft at the warmest month's — all from a constant field elevation of 394 ft. The month-by-month table above carries the full year.
What is the field elevation of Doylestown?
394 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KDYL (ICAO) / DYL (FAA), in Doylestown, Pennsylvania.