Marion, Illinois · field elev 472 ft

Density Altitude at Veterans Airport Of Southern Illinois (KMWA)

Veterans Airport Of Southern Illinois sits at 472 ft, and even a typical July afternoon (88 °F) only lifts density altitude to about 2,446 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,446 ft station: CARBONDALE SEWAGE PLT · 9 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at CARBONDALE SEWAGE PLT (9 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 32.4 −1,201 ft 41.3 −585 ft
February 36.4 −923 ft 46.3 −245 ft
March 45.3 −313 ft 56.1 410 ft
April 56.0 403 ft 67.7 1,166 ft
May 65.9 1,050 ft 76.6 1,732 ft
June 74.4 1,593 ft 84.9 2,249 ft
July 77.9 1,813 ft 88.1 2,446 ft
August 76.0 1,694 ft 87.4 2,403 ft
September 68.6 1,223 ft 81.2 2,020 ft
October 57.0 469 ft 69.9 1,307 ft
November 45.5 −299 ft 56.2 417 ft
December 36.3 −930 ft 45.4 −306 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 KMWA

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,440 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,440 ft

Field elevation 472 ft — the air behaves like 2,440 ft.

PRESSURE ALT
473 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

Nearby Illinois fields

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Frequently asked questions

How high does density altitude get at KMWA in summer?

On a typical July afternoon — around 88 °F at the nearest NOAA normals station — density altitude at Veterans Airport Of Southern Illinois reaches roughly 2,446 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 KMWA on an average day?

It swings with the seasons: from roughly −1,201 ft at the coldest month's average temperature to about 1,813 ft at the warmest month's — all from a constant field elevation of 472 ft. The month-by-month table above carries the full year.

What is the field elevation of Veterans Airport Of Southern Illinois?

472 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMWA (ICAO) / MWA (FAA), in Marion, Illinois.