Carrollton, Ohio · field elev 1,164 ft

Density Altitude at Carroll County/Tolson (KTSO)

Carroll County/Tolson sits at 1,164 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,896 ft — heat still trims performance, but the field rarely turns high-and-hot.

worst typical month: July · ≈2,896 ft station: MILLPORT 4 NE · 18 mi away normals vintage 1991–2020

Typical density altitude by month

From NOAA 1991–2020 monthly normals at MILLPORT 4 NE (18 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 26.4 −758 ft 34.0 −226 ft
February 29.1 −568 ft 37.7 29 ft
March 37.5 15 ft 47.6 701 ft
April 49.4 821 ft 60.6 1,559 ft
May 59.0 1,454 ft 70.0 2,162 ft
June 67.5 2,003 ft 78.2 2,678 ft
July 71.3 2,245 ft 81.7 2,896 ft
August 70.4 2,188 ft 81.0 2,852 ft
September 63.3 1,733 ft 74.3 2,434 ft
October 52.2 1,007 ft 62.6 1,688 ft
November 40.9 248 ft 49.5 828 ft
December 31.6 −393 ft 38.6 91 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 KTSO

Altimeter-style gauge: field elevation and density altitude needles 03691215 DENSITY ALT ×1,000 FT 2,914 DENSITY ALTITUDE · FEET
field elevation density altitude

DENSITY ALTITUDE 2,914 ft

Field elevation 1,164 ft — the air behaves like 2,914 ft.

PRESSURE ALT
1,165 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 KTSO in summer?

On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Carroll County/Tolson reaches roughly 2,896 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 KTSO on an average day?

It swings with the seasons: from roughly −758 ft at the coldest month's average temperature to about 2,245 ft at the warmest month's — all from a constant field elevation of 1,164 ft. The month-by-month table above carries the full year.

What is the field elevation of Carroll County/Tolson?

1,164 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KTSO (ICAO) / TSO (FAA), in Carrollton, Ohio.