Atlantic, Iowa · field elev 1,165 ft

Density Altitude at Atlantic Municipal (KAIO)

Atlantic Municipal sits at 1,165 ft, and even a typical July afternoon (86 °F) only lifts density altitude to about 3,168 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈3,168 ft station: ATLANTIC 1 NE · 2 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at ATLANTIC 1 NE (2 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 20.6 −1,169 ft 31.2 −420 ft
February 24.9 −863 ft 36.1 −80 ft
March 37.4 10 ft 50.0 862 ft
April 49.3 816 ft 62.7 1,696 ft
May 61.2 1,599 ft 73.1 2,360 ft
June 71.3 2,246 ft 82.8 2,965 ft
July 74.8 2,467 ft 86.1 3,168 ft
August 72.5 2,322 ft 84.4 3,063 ft
September 64.5 1,812 ft 78.2 2,680 ft
October 51.5 962 ft 65.0 1,844 ft
November 37.3 3 ft 49.2 809 ft
December 25.8 −799 ft 36.3 −66 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 KAIO

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 3,162 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 3,162 ft

Field elevation 1,165 ft — the air behaves like 3,162 ft.

PRESSURE ALT
1,166 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 KAIO in summer?

On a typical July afternoon — around 86 °F at the nearest NOAA normals station — density altitude at Atlantic Municipal reaches roughly 3,168 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 KAIO on an average day?

It swings with the seasons: from roughly −1,169 ft at the coldest month's average temperature to about 2,467 ft at the warmest month's — all from a constant field elevation of 1,165 ft. The month-by-month table above carries the full year.

What is the field elevation of Atlantic Municipal?

1,165 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KAIO (ICAO) / AIO (FAA), in Atlantic, Iowa.