Brogue, Pennsylvania · field elev 750 ft
Density Altitude at Chanceford (9W8)
Chanceford sits at 750 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 2,588 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 | 31.6 | −910 ft | 39.5 | −363 ft |
| February | 34.1 | −736 ft | 42.9 | −130 ft |
| March | 41.8 | −205 ft | 51.8 | 469 ft |
| April | 53.2 | 562 ft | 64.5 | 1,301 ft |
| May | 62.3 | 1,159 ft | 73.2 | 1,858 ft |
| June | 70.4 | 1,680 ft | 80.8 | 2,334 ft |
| July | 74.6 | 1,946 ft | 84.9 | 2,588 ft |
| August | 72.9 | 1,839 ft | 83.1 | 2,477 ft |
| September | 66.5 | 1,430 ft | 76.7 | 2,078 ft |
| October | 55.4 | 707 ft | 65.4 | 1,360 ft |
| November | 44.9 | 5 ft | 53.9 | 608 ft |
| December | 36.1 | −597 ft | 43.7 | −76 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 9W8
DENSITY ALTITUDE
Field elevation 750 ft — the air behaves like 2,594 ft.
- PRESSURE ALT
- 751 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
- 0P2 — Shoestring Aviation Airfield
Stewartstown · elev 1,000 ft
- N71 — Donegal Springs Airpark
Mount Joy/Marietta · elev 458 ft
- S37 — Smoketown
Smoketown · elev 370 ft
- KTHV — York
York · elev 495 ft
- 0P8 — Lazy B Ranch
Dover · elev 476 ft
- KLNS — Lancaster
Lancaster · elev 403 ft
- KMDT — Harrisburg International
Harrisburg · elev 310 ft
- 2N5 — Kampel
Wellsville · elev 611 ft
Frequently asked questions
How high does density altitude get at 9W8 in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Chanceford reaches roughly 2,588 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 9W8 on an average day?
It swings with the seasons: from roughly −910 ft at the coldest month's average temperature to about 1,946 ft at the warmest month's — all from a constant field elevation of 750 ft. The month-by-month table above carries the full year.
What is the field elevation of Chanceford?
750 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 9W8 (FAA), in Brogue, Pennsylvania.