Hubbard, Oregon · field elev 165 ft
Density Altitude at Lenhardt Airpark (7S9)
Lenhardt Airpark sits at 165 ft, and even a typical August afternoon (83 °F) only lifts density altitude to about 1,775 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 | 42.4 | −892 ft | 48.5 | −477 ft |
| February | 44.7 | −735 ft | 52.5 | −209 ft |
| March | 48.3 | −491 ft | 57.1 | 97 ft |
| April | 52.3 | −222 ft | 62.0 | 419 ft |
| May | 58.7 | 202 ft | 69.2 | 885 ft |
| June | 63.4 | 510 ft | 74.5 | 1,223 ft |
| July | 69.6 | 910 ft | 83.1 | 1,763 ft |
| August | 69.8 | 923 ft | 83.3 | 1,775 ft |
| September | 64.8 | 601 ft | 77.4 | 1,406 ft |
| October | 54.9 | −49 ft | 64.3 | 568 ft |
| November | 46.7 | −599 ft | 53.7 | −129 ft |
| December | 41.8 | −933 ft | 47.6 | −538 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 7S9
DENSITY ALTITUDE
Field elevation 165 ft — the air behaves like 1,757 ft.
- PRESSURE ALT
- 166 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 Oregon fields
- KUAO — Aurora State
Aurora · elev 200 ft
- 4S9 — Mulino State
Portland-Mulino · elev 260 ft
- 2S6 — Sportsman Airpark
Newberg · elev 181 ft
- 17S — Chehalem Airpark
Newberg · elev 190 ft
- KMMV — Mc Minnville Municipal
Mc Minnville · elev 163 ft
- 7S3 — Stark'S Twin Oaks Airpark
Hillsboro · elev 170 ft
- KSLE — Mcnary Field
Salem · elev 213 ft
- KHIO — Portland-Hillsboro
Portland · elev 208 ft
Frequently asked questions
How high does density altitude get at 7S9 in summer?
On a typical August afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Lenhardt Airpark reaches roughly 1,775 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 7S9 on an average day?
It swings with the seasons: from roughly −933 ft at the coldest month's average temperature to about 923 ft at the warmest month's — all from a constant field elevation of 165 ft. The month-by-month table above carries the full year.
What is the field elevation of Lenhardt Airpark?
165 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 7S9 (FAA), in Hubbard, Oregon.