Laurier, Washington · field elev 1,655 ft
Density Altitude at Avey Field (69S)
Avey Field sits at 1,655 ft, and even a typical August afternoon (86 °F) only lifts density altitude to about 3,740 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 | 25.8 | −186 ft | 31.1 | 185 ft |
| February | 30.3 | 130 ft | 38.7 | 709 ft |
| March | 38.1 | 668 ft | 49.1 | 1,409 ft |
| April | 46.1 | 1,209 ft | 59.6 | 2,098 ft |
| May | 55.2 | 1,812 ft | 69.6 | 2,739 ft |
| June | 60.9 | 2,182 ft | 75.2 | 3,091 ft |
| July | 68.0 | 2,638 ft | 85.4 | 3,722 ft |
| August | 67.7 | 2,619 ft | 85.7 | 3,740 ft |
| September | 58.9 | 2,053 ft | 75.2 | 3,091 ft |
| October | 45.4 | 1,162 ft | 56.9 | 1,923 ft |
| November | 33.9 | 379 ft | 40.5 | 831 ft |
| December | 26.5 | −136 ft | 31.5 | 213 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 69S
DENSITY ALTITUDE
Field elevation 1,655 ft — the air behaves like 3,758 ft.
- PRESSURE ALT
- 1,656 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 Washington fields
- R49 — Ferry County
Republic · elev 2,522 ft
- 63S — Colville Municipal
Colville · elev 1,883 ft
- S23 — Ione Municipal
Ione · elev 2,110 ft
- 09S — Sullivan Lake State
Metaline Falls · elev 2,614 ft
- 1S9 — Chewelah Municipal
Chewelah · elev 2,084 ft
- 0S7 — Dorothy Scott International
Oroville · elev 1,069 ft
- W01 — Tonasket Municipal
Tonasket · elev 1,311 ft
- KOMK — Omak
Omak · elev 1,305 ft
Frequently asked questions
How high does density altitude get at 69S in summer?
On a typical August afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Avey Field reaches roughly 3,740 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 69S on an average day?
It swings with the seasons: from roughly −186 ft at the coldest month's average temperature to about 2,638 ft at the warmest month's — all from a constant field elevation of 1,655 ft. The month-by-month table above carries the full year.
What is the field elevation of Avey Field?
1,655 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 69S (FAA), in Laurier, Washington.