Oelwein, Iowa · field elev 1,076 ft

Density Altitude at Oelwein Municipal (KOLZ)

Oelwein Municipal sits at 1,076 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,782 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,782 ft station: OELWEIN 2 S · 4 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at OELWEIN 2 S (4 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 16.2 −1,599 ft 25.6 −925 ft
February 19.3 −1,375 ft 28.9 −692 ft
March 33.5 −370 ft 42.8 268 ft
April 47.2 565 ft 57.8 1,267 ft
May 58.6 1,320 ft 69.4 2,016 ft
June 69.2 2,004 ft 78.9 2,615 ft
July 71.9 2,175 ft 81.6 2,782 ft
August 69.8 2,042 ft 79.4 2,646 ft
September 62.6 1,580 ft 73.8 2,295 ft
October 49.2 699 ft 60.2 1,424 ft
November 34.7 −287 ft 44.0 349 ft
December 23.0 −1,109 ft 31.3 −524 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 KOLZ

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,807 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,807 ft

Field elevation 1,076 ft — the air behaves like 2,807 ft.

PRESSURE ALT
1,077 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 KOLZ in summer?

On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Oelwein Municipal reaches roughly 2,782 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 KOLZ on an average day?

It swings with the seasons: from roughly −1,599 ft at the coldest month's average temperature to about 2,175 ft at the warmest month's — all from a constant field elevation of 1,076 ft. The month-by-month table above carries the full year.

What is the field elevation of Oelwein Municipal?

1,076 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KOLZ (ICAO) / OLZ (FAA), in Oelwein, Iowa.