Famoso, California · field elev 635 ft

Density Altitude at Poso-Kern County (L73)

Poso-Kern County sits at 635 ft, and even a typical August afternoon (97 °F) only lifts density altitude to about 3,196 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: August · ≈3,196 ft station: SHAFTER 6E · 8 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at SHAFTER 6E (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 47.2 18 ft 57.9 730 ft
February 51.6 313 ft 64.4 1,153 ft
March 56.5 638 ft 70.0 1,513 ft
April 60.6 907 ft 75.4 1,856 ft
May 67.5 1,353 ft 82.9 2,324 ft
June 74.7 1,812 ft 91.7 2,864 ft
July 79.6 2,119 ft 96.1 3,130 ft
August 79.8 2,132 ft 97.2 3,196 ft
September 74.4 1,793 ft 91.4 2,846 ft
October 63.2 1,076 ft 79.7 2,125 ft
November 52.7 386 ft 66.6 1,295 ft
December 46.8 −9 ft 59.8 854 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 L73

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 3,184 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 3,184 ft

Field elevation 635 ft — the air behaves like 3,184 ft.

PRESSURE ALT
636 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 L73 in summer?

On a typical August afternoon — around 97 °F at the nearest NOAA normals station — density altitude at Poso-Kern County reaches roughly 3,196 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 L73 on an average day?

It swings with the seasons: from roughly −9 ft at the coldest month's average temperature to about 2,132 ft at the warmest month's — all from a constant field elevation of 635 ft. The month-by-month table above carries the full year.

What is the field elevation of Poso-Kern County?

635 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is L73 (FAA), in Famoso, California.