Preston, Minnesota · field elev 1,277 ft

Density Altitude at Fillmore County (KFKA)

Fillmore County sits at 1,277 ft, and even a typical July afternoon (81 °F) only lifts density altitude to about 2,997 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,997 ft station: PRESTON · 5 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at PRESTON (5 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 13.8 −1,520 ft 23.6 −815 ft
February 18.1 −1,208 ft 28.2 −490 ft
March 30.7 −315 ft 40.9 389 ft
April 43.7 578 ft 55.4 1,358 ft
May 55.7 1,378 ft 67.6 2,148 ft
June 65.9 2,039 ft 77.7 2,785 ft
July 69.6 2,276 ft 81.1 2,997 ft
August 67.5 2,142 ft 79.3 2,885 ft
September 59.9 1,652 ft 72.5 2,459 ft
October 46.7 781 ft 58.8 1,581 ft
November 33.0 −154 ft 42.7 511 ft
December 20.5 −1,036 ft 29.4 −405 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 KFKA

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,990 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,990 ft

Field elevation 1,277 ft — the air behaves like 2,990 ft.

PRESSURE ALT
1,278 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 KFKA in summer?

On a typical July afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Fillmore County reaches roughly 2,997 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 KFKA on an average day?

It swings with the seasons: from roughly −1,520 ft at the coldest month's average temperature to about 2,276 ft at the warmest month's — all from a constant field elevation of 1,277 ft. The month-by-month table above carries the full year.

What is the field elevation of Fillmore County?

1,277 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KFKA (ICAO) / FKA (FAA), in Preston, Minnesota.