Fryeburg, Maine · field elev 455 ft

Density Altitude at White Mountain Regional (KIZG)

White Mountain Regional sits at 455 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,036 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,036 ft station: FRYEBURG E SLOPES AP · 0 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at FRYEBURG E SLOPES AP (0 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 18.7 −2,198 ft 30.5 −1,356 ft
February 21.3 −2,011 ft 33.7 −1,132 ft
March 30.5 −1,356 ft 42.1 −552 ft
April 42.9 −497 ft 55.6 356 ft
May 54.9 310 ft 68.4 1,190 ft
June 64.0 906 ft 76.9 1,730 ft
July 69.1 1,235 ft 81.8 2,036 ft
August 67.3 1,119 ft 80.6 1,962 ft
September 59.2 593 ft 72.7 1,464 ft
October 47.3 −198 ft 59.4 606 ft
November 36.0 −972 ft 46.6 −246 ft
December 25.2 −1,731 ft 35.7 −992 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 KIZG

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,049 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,049 ft

Field elevation 455 ft — the air behaves like 2,049 ft.

PRESSURE ALT
456 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 KIZG in summer?

On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at White Mountain Regional reaches roughly 2,036 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 KIZG on an average day?

It swings with the seasons: from roughly −2,198 ft at the coldest month's average temperature to about 1,235 ft at the warmest month's — all from a constant field elevation of 455 ft. The month-by-month table above carries the full year.

What is the field elevation of White Mountain Regional?

455 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KIZG (ICAO) / IZG (FAA), in Fryeburg, Maine.