Lock Haven, Pennsylvania · field elev 556 ft
Density Altitude at William T Piper Meml (KLHV)
William T Piper Meml sits at 556 ft, and even a typical July afternoon (85 °F) only lifts density altitude to about 2,345 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 | 26.6 | −1,505 ft | 34.9 | −922 ft |
| February | 28.6 | −1,363 ft | 38.1 | −700 ft |
| March | 37.2 | −763 ft | 47.8 | −39 ft |
| April | 49.1 | 48 ft | 61.8 | 887 ft |
| May | 60.0 | 770 ft | 72.7 | 1,588 ft |
| June | 68.5 | 1,320 ft | 80.3 | 2,066 ft |
| July | 73.0 | 1,607 ft | 84.8 | 2,345 ft |
| August | 71.4 | 1,506 ft | 83.0 | 2,234 ft |
| September | 64.2 | 1,043 ft | 75.8 | 1,784 ft |
| October | 52.1 | 249 ft | 63.5 | 998 ft |
| November | 40.7 | −522 ft | 50.5 | 142 ft |
| December | 31.8 | −1,138 ft | 39.5 | −604 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 KLHV
DENSITY ALTITUDE
Field elevation 556 ft — the air behaves like 2,358 ft.
- PRESSURE ALT
- 557 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
- P96 — Jersey Shore
Jersey Shore · elev 554 ft
- N74 — Penns Cave
Centre Hall · elev 1,245 ft
- N16 — Centre Airpark
Centre Hall · elev 1,307 ft
- N96 — Bellefonte
Bellefonte · elev 1,072 ft
- KIPT — Williamsport Regional
Williamsport · elev 528 ft
- KUNV — State College Regional
State College · elev 1,231 ft
- KRVL — Mifflin County
Reedsville · elev 819 ft
- KSEG — Penn Valley
Selinsgrove · elev 464 ft
Frequently asked questions
How high does density altitude get at KLHV in summer?
On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at William T Piper Meml reaches roughly 2,345 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 KLHV on an average day?
It swings with the seasons: from roughly −1,505 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 556 ft. The month-by-month table above carries the full year.
What is the field elevation of William T Piper Meml?
556 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KLHV (ICAO) / LHV (FAA), in Lock Haven, Pennsylvania.