Gates, Oregon · field elev 1,028 ft
Density Altitude at Davis (6S4)
Davis sits at 1,028 ft, and even a typical August afternoon (81 °F) only lifts density altitude to about 2,674 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 | 39.9 | 11 ft | 43.4 | 249 ft |
| February | 41.7 | 134 ft | 46.7 | 472 ft |
| March | 44.8 | 344 ft | 51.7 | 806 ft |
| April | 49.2 | 639 ft | 57.4 | 1,182 ft |
| May | 55.8 | 1,077 ft | 65.2 | 1,689 ft |
| June | 61.0 | 1,417 ft | 70.9 | 2,053 ft |
| July | 68.0 | 1,868 ft | 80.3 | 2,643 ft |
| August | 68.5 | 1,900 ft | 80.8 | 2,674 ft |
| September | 63.4 | 1,572 ft | 74.1 | 2,255 ft |
| October | 53.6 | 932 ft | 60.7 | 1,397 ft |
| November | 44.9 | 351 ft | 49.4 | 653 ft |
| December | 39.9 | 11 ft | 43.1 | 229 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 6S4
DENSITY ALTITUDE
Field elevation 1,028 ft — the air behaves like 2,686 ft.
- PRESSURE ALT
- 1,029 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
- S30 — Lebanon State
Lebanon · elev 349 ft
- KSLE — Mcnary Field
Salem · elev 213 ft
- 8S3 — Santiam Junction State
Santiam Junction · elev 3,780 ft
- S12 — Albany Municipal
Albany · elev 227 ft
- 4S9 — Mulino State
Portland-Mulino · elev 260 ft
- 7S9 — Lenhardt Airpark
Hubbard · elev 165 ft
- KUAO — Aurora State
Aurora · elev 200 ft
- 7S5 — Independence State
Independence · elev 180 ft
Frequently asked questions
How high does density altitude get at 6S4 in summer?
On a typical August afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Davis reaches roughly 2,674 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 6S4 on an average day?
It swings with the seasons: from roughly 11 ft at the coldest month's average temperature to about 1,900 ft at the warmest month's — all from a constant field elevation of 1,028 ft. The month-by-month table above carries the full year.
What is the field elevation of Davis?
1,028 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 6S4 (FAA), in Gates, Oregon.