Palmyra, Pennsylvania · field elev 489 ft
Density Altitude at Reigle Field (58N)
Reigle Field sits at 489 ft, and even a typical July afternoon (84 °F) only lifts density altitude to about 2,239 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 | 29.5 | −1,384 ft | 37.0 | −860 ft |
| February | 31.9 | −1,215 ft | 40.4 | −626 ft |
| March | 40.1 | −646 ft | 49.4 | −15 ft |
| April | 51.1 | 99 ft | 62.0 | 818 ft |
| May | 61.2 | 766 ft | 71.9 | 1,455 ft |
| June | 69.9 | 1,328 ft | 80.0 | 1,966 ft |
| July | 74.3 | 1,607 ft | 84.4 | 2,239 ft |
| August | 72.5 | 1,493 ft | 82.4 | 2,115 ft |
| September | 65.5 | 1,045 ft | 75.6 | 1,690 ft |
| October | 54.0 | 292 ft | 64.1 | 954 ft |
| November | 43.2 | −434 ft | 52.3 | 179 ft |
| December | 34.3 | −1,047 ft | 41.7 | −537 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 58N
DENSITY ALTITUDE
Field elevation 489 ft — the air behaves like 2,214 ft.
- PRESSURE ALT
- 490 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
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- 08N — Keller Brothers
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- N71 — Donegal Springs Airpark
Mount Joy/Marietta · elev 458 ft
- 9D4 — Deck
Myerstown · elev 523 ft
- KCXY — Capital City
Harrisburg · elev 347 ft
- KLNS — Lancaster
Lancaster · elev 403 ft
- 74N — Bendigo
Tower City · elev 791 ft
Frequently asked questions
How high does density altitude get at 58N in summer?
On a typical July afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Reigle Field reaches roughly 2,239 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 58N on an average day?
It swings with the seasons: from roughly −1,384 ft at the coldest month's average temperature to about 1,607 ft at the warmest month's — all from a constant field elevation of 489 ft. The month-by-month table above carries the full year.
What is the field elevation of Reigle Field?
489 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 58N (FAA), in Palmyra, Pennsylvania.