Starbuck, Washington · field elev 681 ft
Density Altitude at Little Goose Lock And Dam (16W)
Little Goose Lock And Dam sits at 681 ft, and even a typical July afternoon (90 °F) only lifts density altitude to about 2,817 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 | 32.3 | −947 ft | 38.8 | −497 ft |
| February | 35.8 | −704 ft | 44.8 | −87 ft |
| March | 42.3 | −257 ft | 53.7 | 510 ft |
| April | 48.7 | 176 ft | 61.9 | 1,048 ft |
| May | 56.7 | 708 ft | 71.5 | 1,665 ft |
| June | 63.6 | 1,158 ft | 79.4 | 2,163 ft |
| July | 71.3 | 1,653 ft | 90.0 | 2,817 ft |
| August | 70.3 | 1,589 ft | 88.8 | 2,743 ft |
| September | 61.2 | 1,002 ft | 78.5 | 2,107 ft |
| October | 49.3 | 216 ft | 62.7 | 1,100 ft |
| November | 38.6 | −510 ft | 47.3 | 82 ft |
| December | 31.2 | −1,024 ft | 37.9 | −559 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 16W
DENSITY ALTITUDE
Field elevation 681 ft — the air behaves like 2,817 ft.
- PRESSURE ALT
- 682 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
- W09 — Lower Monumental State
Kahlotus · elev 813 ft
- 00W — Lower Granite State
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- S94 — Port Of Whitman Business Air Center
Colfax · elev 2,181 ft
- KALW — Walla Walla Regional
Walla Walla · elev 1,194 ft
- 0S0 — Lind
Lind · elev 1,507 ft
- 33S — Pru Field
Ritzville · elev 1,801 ft
- S95 — Martin Field
College Place · elev 750 ft
- KPUW — Pullman/Moscow Regional
Pullman/Moscow · elev 2,567 ft
Frequently asked questions
How high does density altitude get at 16W in summer?
On a typical July afternoon — around 90 °F at the nearest NOAA normals station — density altitude at Little Goose Lock And Dam reaches roughly 2,817 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 16W on an average day?
It swings with the seasons: from roughly −1,024 ft at the coldest month's average temperature to about 1,653 ft at the warmest month's — all from a constant field elevation of 681 ft. The month-by-month table above carries the full year.
What is the field elevation of Little Goose Lock And Dam?
681 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 16W (FAA), in Starbuck, Washington.