Imnaha, Oregon · field elev 1,185 ft
Density Altitude at Pittsburg Landing (O29)
Pittsburg Landing sits at 1,185 ft, and even a typical August afternoon (90 °F) only lifts density altitude to about 3,430 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 | 32.6 | −297 ft | 40.5 | 247 ft |
| February | 35.9 | −68 ft | 46.1 | 626 ft |
| March | 42.6 | 390 ft | 54.9 | 1,212 ft |
| April | 48.4 | 780 ft | 62.1 | 1,682 ft |
| May | 55.9 | 1,277 ft | 70.7 | 2,233 ft |
| June | 62.3 | 1,695 ft | 77.7 | 2,673 ft |
| July | 71.1 | 2,258 ft | 89.8 | 3,418 ft |
| August | 71.0 | 2,252 ft | 90.0 | 3,430 ft |
| September | 62.4 | 1,701 ft | 79.5 | 2,785 ft |
| October | 49.9 | 881 ft | 63.5 | 1,772 ft |
| November | 38.7 | 124 ft | 48.3 | 774 ft |
| December | 32.0 | −339 ft | 39.6 | 186 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 O29
DENSITY ALTITUDE
Field elevation 1,185 ft — the air behaves like 3,430 ft.
- PRESSURE ALT
- 1,186 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
- OR9 — Lord Flat Usfs
Imnaha · elev 5,594 ft
- O68 — Sluice Creek
Imnaha · elev 1,370 ft
- OR8 — Dug Bar Usfs
Imnaha · elev 1,022 ft
- 25U — Memaloose Usfs
Imnaha · elev 6,708 ft
- O48 — Salmon Bar
Imnaha · elev 947 ft
- O62 — B & H Usfs
Enterprise · elev 4,007 ft
- 8S4 — Enterprise Municipal
Enterprise · elev 3,957 ft
- KJSY — Joseph State
Joseph · elev 4,126 ft
Frequently asked questions
How high does density altitude get at O29 in summer?
On a typical August afternoon — around 90 °F at the nearest NOAA normals station — density altitude at Pittsburg Landing reaches roughly 3,430 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 O29 on an average day?
It swings with the seasons: from roughly −339 ft at the coldest month's average temperature to about 2,258 ft at the warmest month's — all from a constant field elevation of 1,185 ft. The month-by-month table above carries the full year.
What is the field elevation of Pittsburg Landing?
1,185 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is O29 (FAA), in Imnaha, Oregon.