Eastsound, Washington · field elev 35 ft

Density Altitude at Orcas Island (KORS)

Orcas Island sits at 35 ft, and even a typical July afternoon (69 °F) only lifts density altitude to about 725 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈725 ft station: OLGA 2 SE · 8 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at OLGA 2 SE (8 mi from the field) · standard pressure, dry air
Month Avg temp °F DA at avg temp Afternoon high °F DA on a typical afternoon
January 41.0 −1,150 ft 44.0 −944 ft
February 42.5 −1,047 ft 46.4 −781 ft
March 45.5 −842 ft 50.3 −517 ft
April 49.7 −558 ft 55.5 −170 ft
May 54.5 −236 ft 61.5 226 ft
June 58.1 2 ft 65.0 454 ft
July 61.7 239 ft 69.2 725 ft
August 61.7 239 ft 69.2 725 ft
September 58.2 9 ft 65.0 454 ft
October 51.6 −430 ft 56.4 −110 ft
November 45.0 −876 ft 48.5 −639 ft
December 40.6 −1,177 ft 43.6 −971 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 KORS

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 712 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 712 ft

Field elevation 35 ft — the air behaves like 712 ft.

PRESSURE ALT
36 ft
ISA DEVIATION
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RULE-OF-THUMB DA
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AIR DENSITY INDEX
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AIR DENSITY
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WATER · GRAINS/LB
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For training and reference · verify with official sources and your POH before flight · no tool on this site renders a go / no-go judgment

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Frequently asked questions

How high does density altitude get at KORS in summer?

On a typical July afternoon — around 69 °F at the nearest NOAA normals station — density altitude at Orcas Island reaches roughly 725 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 KORS on an average day?

It swings with the seasons: from roughly −1,177 ft at the coldest month's average temperature to about 239 ft at the warmest month's — all from a constant field elevation of 35 ft. The month-by-month table above carries the full year.

What is the field elevation of Orcas Island?

35 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KORS (ICAO) / ORS (FAA), in Eastsound, Washington.