Sandy, Oregon · field elev 704 ft
Density Altitude at Sandy River (03S)
Sandy River sits at 704 ft, and even a typical August afternoon (78 °F) only lifts density altitude to about 2,078 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 | 39.5 | −420 ft | 43.8 | −126 ft |
| February | 41.6 | −276 ft | 47.2 | 104 ft |
| March | 44.6 | −72 ft | 51.9 | 418 ft |
| April | 48.7 | 205 ft | 56.9 | 749 ft |
| May | 54.8 | 611 ft | 64.1 | 1,219 ft |
| June | 59.3 | 907 ft | 68.9 | 1,528 ft |
| July | 65.2 | 1,290 ft | 76.6 | 2,016 ft |
| August | 65.9 | 1,335 ft | 77.6 | 2,078 ft |
| September | 61.3 | 1,037 ft | 71.7 | 1,706 ft |
| October | 52.6 | 465 ft | 60.1 | 959 ft |
| November | 44.3 | −92 ft | 49.1 | 231 ft |
| December | 39.1 | −447 ft | 43.1 | −174 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 03S
DENSITY ALTITUDE
Field elevation 704 ft — the air behaves like 2,104 ft.
- PRESSURE ALT
- 705 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
- KTTD — Portland-Troutdale
Portland · elev 39 ft
- 4S9 — Mulino State
Portland-Mulino · elev 260 ft
- KPDX — Portland International
Portland · elev 31 ft
- KCZK — Cascade Locks State
Cascade Locks · elev 151 ft
- KUAO — Aurora State
Aurora · elev 200 ft
- 7S9 — Lenhardt Airpark
Hubbard · elev 165 ft
- 7S3 — Stark'S Twin Oaks Airpark
Hillsboro · elev 170 ft
- 2S6 — Sportsman Airpark
Newberg · elev 181 ft
Frequently asked questions
How high does density altitude get at 03S in summer?
On a typical August afternoon — around 78 °F at the nearest NOAA normals station — density altitude at Sandy River reaches roughly 2,078 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 03S on an average day?
It swings with the seasons: from roughly −447 ft at the coldest month's average temperature to about 1,335 ft at the warmest month's — all from a constant field elevation of 704 ft. The month-by-month table above carries the full year.
What is the field elevation of Sandy River?
704 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 03S (FAA), in Sandy, Oregon.