Slatington, Pennsylvania · field elev 380 ft
Density Altitude at Slatington (69N)
Slatington sits at 380 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 1,938 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 | 27.2 | −1,683 ft | 35.6 | −1,093 ft |
| February | 29.5 | −1,520 ft | 38.4 | −899 ft |
| March | 37.5 | −961 ft | 47.2 | −298 ft |
| April | 49.5 | −143 ft | 60.9 | 612 ft |
| May | 59.4 | 514 ft | 70.5 | 1,232 ft |
| June | 67.4 | 1,033 ft | 77.6 | 1,682 ft |
| July | 72.1 | 1,334 ft | 81.7 | 1,938 ft |
| August | 69.9 | 1,194 ft | 79.8 | 1,820 ft |
| September | 63.0 | 749 ft | 73.3 | 1,410 ft |
| October | 51.4 | −16 ft | 61.6 | 657 ft |
| November | 40.9 | −727 ft | 50.1 | −103 ft |
| December | 32.1 | −1,337 ft | 39.8 | −803 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 69N
DENSITY ALTITUDE
Field elevation 380 ft — the air behaves like 1,957 ft.
- PRESSURE ALT
- 381 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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- 22N — Jake Arner Meml
Lehighton · elev 534 ft
- KABE — Lehigh Valley International
Allentown · elev 394 ft
- KXLL — Allentown Queen City Municipal
Allentown · elev 399 ft
- N43 — Braden Airpark
Easton · elev 397 ft
- 7N8 — Butter Valley Golf Port
Bally · elev 500 ft
- KUKT — Quakertown
Quakertown · elev 525 ft
Frequently asked questions
How high does density altitude get at 69N in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Slatington reaches roughly 1,938 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 69N on an average day?
It swings with the seasons: from roughly −1,683 ft at the coldest month's average temperature to about 1,334 ft at the warmest month's — all from a constant field elevation of 380 ft. The month-by-month table above carries the full year.
What is the field elevation of Slatington?
380 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 69N (FAA), in Slatington, Pennsylvania.