Sunbury, Pennsylvania · field elev 450 ft
Density Altitude at Sunbury (71N)
Sunbury sits at 450 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 2,191 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 | 27.1 | −1,602 ft | 35.3 | −1,026 ft |
| February | 29.8 | −1,411 ft | 39.0 | −770 ft |
| March | 37.6 | −867 ft | 47.7 | −178 ft |
| April | 49.2 | −77 ft | 61.1 | 711 ft |
| May | 59.5 | 607 ft | 71.7 | 1,395 ft |
| June | 68.3 | 1,177 ft | 79.8 | 1,905 ft |
| July | 72.4 | 1,439 ft | 84.4 | 2,191 ft |
| August | 70.7 | 1,331 ft | 82.2 | 2,055 ft |
| September | 63.1 | 841 ft | 75.1 | 1,610 ft |
| October | 52.0 | 111 ft | 63.6 | 874 ft |
| November | 41.3 | −613 ft | 50.8 | 30 ft |
| December | 32.3 | −1,236 ft | 40.1 | −695 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 71N
DENSITY ALTITUDE
Field elevation 450 ft — the air behaves like 2,167 ft.
- PRESSURE ALT
- 451 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
- KSEG — Penn Valley
Selinsgrove · elev 464 ft
- 8N8 — Danville
Danville · elev 559 ft
- N79 — Northumberland County
Shamokin · elev 881 ft
- N13 — Bloomsburg Municipal
Bloomsburg · elev 481 ft
- KZER — Schuylkill County/Joe Zerbey
Pottsville · elev 1,730 ft
- KIPT — Williamsport Regional
Williamsport · elev 528 ft
- 74N — Bendigo
Tower City · elev 791 ft
- P96 — Jersey Shore
Jersey Shore · elev 554 ft
Frequently asked questions
How high does density altitude get at 71N in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Sunbury reaches roughly 2,191 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 71N on an average day?
It swings with the seasons: from roughly −1,602 ft at the coldest month's average temperature to about 1,439 ft at the warmest month's — all from a constant field elevation of 450 ft. The month-by-month table above carries the full year.
What is the field elevation of Sunbury?
450 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 71N (FAA), in Sunbury, Pennsylvania.