Sisters, Oregon · field elev 3,168 ft
Density Altitude at Sisters Eagle Air (6K5)
From a field elevation of 3,168 ft, a typical July afternoon at Sisters Eagle Air (86 °F) raises density altitude to about 5,573 ft — solidly into the range where performance charts deserve a close read.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 30.8 | 2,050 ft | 40.8 | 2,728 ft |
| February | 32.9 | 2,194 ft | 43.9 | 2,935 ft |
| March | 37.9 | 2,533 ft | 50.6 | 3,377 ft |
| April | 43.0 | 2,875 ft | 57.1 | 3,799 ft |
| May | 50.4 | 3,364 ft | 66.3 | 4,384 ft |
| June | 56.6 | 3,766 ft | 74.2 | 4,878 ft |
| July | 64.5 | 4,271 ft | 85.6 | 5,573 ft ▲ |
| August | 63.5 | 4,208 ft | 84.5 | 5,507 ft ▲ |
| September | 55.9 | 3,721 ft | 75.8 | 4,976 ft |
| October | 44.9 | 3,002 ft | 61.3 | 4,068 ft |
| November | 35.9 | 2,398 ft | 47.4 | 3,167 ft |
| December | 29.6 | 1,968 ft | 39.3 | 2,628 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 6K5
DENSITY ALTITUDE caution
Field elevation 3,168 ft — the air behaves like 5,597 ft.
- PRESSURE ALT
- 3,170 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
- 5S5 — Lake Billy Chinook
Culver · elev 2,695 ft
- KRDM — Roberts Field/Redmond Municipal
Redmond · elev 3,082 ft
- 8S3 — Santiam Junction State
Santiam Junction · elev 3,780 ft
- KBDN — Bend Municipal
Bend · elev 3,459 ft
- 00S — Mc Kenzie Bridge State
Mc Kenzie Bridge · elev 1,620 ft
- S21 — Sunriver
Sunriver · elev 4,164 ft
- S39 — Prineville
Prineville · elev 3,251 ft
- S33 — Madras Municipal
Madras · elev 2,438 ft
Frequently asked questions
How high does density altitude get at 6K5 in summer?
On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Sisters Eagle Air reaches roughly 5,573 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 6K5 on an average day?
It swings with the seasons: from roughly 1,968 ft at the coldest month's average temperature to about 4,271 ft at the warmest month's — all from a constant field elevation of 3,168 ft. The month-by-month table above carries the full year.
What is the field elevation of Sisters Eagle Air?
3,168 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 6K5 (FAA), in Sisters, Oregon.