Chiloquin, Oregon · field elev 4,221 ft

Density Altitude at Chiloquin State (2S7)

From a field elevation of 4,221 ft, a typical July afternoon at Chiloquin State (85 °F) raises density altitude to about 6,809 ft — solidly into the range where performance charts deserve a close read.

worst typical month: July · ≈6,809 ft station: CHILOQUIN 12 NW (FORT KLAMATH) · 10 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at CHILOQUIN 12 NW (FORT KLAMATH) (10 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 28.9 3,230 ft 39.2 3,925 ft
February 32.9 3,502 ft 44.1 4,250 ft
March 37.6 3,819 ft 50.4 4,662 ft
April 42.7 4,158 ft 56.9 5,080 ft ▲
May 49.8 4,623 ft 66.4 5,679 ft ▲
June 56.2 5,035 ft 75.0 6,210 ft ▲
July 63.5 5,498 ft 84.9 6,809 ft ▲
August 62.4 5,428 ft 84.3 6,773 ft ▲
September 55.9 5,016 ft 77.5 6,363 ft ▲
October 45.7 4,355 ft 63.9 5,523 ft ▲
November 35.9 3,705 ft 47.9 4,499 ft
December 28.9 3,230 ft 38.9 3,905 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 2S7

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 6,815 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 6,815 ft caution

Field elevation 4,221 ft — the air behaves like 6,815 ft.

PRESSURE ALT
4,223 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

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Frequently asked questions

How high does density altitude get at 2S7 in summer?

On a typical July afternoon — around 85 °F at the nearest NOAA normals station — density altitude at Chiloquin State reaches roughly 6,809 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 2S7 on an average day?

It swings with the seasons: from roughly 3,230 ft at the coldest month's average temperature to about 5,498 ft at the warmest month's — all from a constant field elevation of 4,221 ft. The month-by-month table above carries the full year.

What is the field elevation of Chiloquin State?

4,221 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 2S7 (FAA), in Chiloquin, Oregon.