Litchfield, Illinois · field elev 691 ft

Density Altitude at Litchfield Municipal (3LF)

Litchfield Municipal sits at 691 ft, and even a typical July afternoon (89 °F) only lifts density altitude to about 2,750 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,750 ft station: HILLSBORO · 10 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at HILLSBORO (10 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 29.9 −1,103 ft 38.4 −512 ft
February 34.9 −754 ft 44.5 −95 ft
March 44.8 −75 ft 55.4 634 ft
April 56.2 687 ft 68.3 1,473 ft
May 66.0 1,326 ft 77.7 2,069 ft
June 74.6 1,874 ft 86.0 2,584 ft
July 77.6 2,063 ft 88.7 2,750 ft
August 76.0 1,962 ft 87.3 2,664 ft
September 69.2 1,531 ft 81.7 2,318 ft
October 57.8 792 ft 69.7 1,563 ft
November 44.9 −68 ft 54.6 582 ft
December 34.6 −774 ft 42.8 −210 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 3LF

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,768 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,768 ft

Field elevation 691 ft — the air behaves like 2,768 ft.

PRESSURE ALT
692 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 3LF in summer?

On a typical July afternoon — around 89 °F at the nearest NOAA normals station — density altitude at Litchfield Municipal reaches roughly 2,750 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 3LF on an average day?

It swings with the seasons: from roughly −1,103 ft at the coldest month's average temperature to about 2,063 ft at the warmest month's — all from a constant field elevation of 691 ft. The month-by-month table above carries the full year.

What is the field elevation of Litchfield Municipal?

691 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 3LF (FAA), in Litchfield, Illinois.