London, Ohio · field elev 1,082 ft
Density Altitude at Madison County (KUYF)
Madison County sits at 1,082 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,827 ft — heat still trims performance, but the field rarely turns high-and-hot.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 25.9 | −896 ft | 33.2 | −384 ft |
| February | 28.6 | −705 ft | 36.7 | −142 ft |
| March | 38.1 | −45 ft | 47.7 | 606 ft |
| April | 49.8 | 746 ft | 61.1 | 1,490 ft |
| May | 60.5 | 1,451 ft | 71.3 | 2,144 ft |
| June | 69.5 | 2,030 ft | 79.3 | 2,647 ft |
| July | 72.4 | 2,214 ft | 82.2 | 2,827 ft |
| August | 70.7 | 2,106 ft | 80.9 | 2,746 ft |
| September | 64.2 | 1,691 ft | 75.7 | 2,422 ft |
| October | 52.5 | 926 ft | 64.0 | 1,678 ft |
| November | 40.8 | 139 ft | 49.8 | 746 ft |
| December | 31.3 | −516 ft | 38.5 | −18 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 KUYF
DENSITY ALTITUDE
Field elevation 1,082 ft — the air behaves like 2,814 ft.
- PRESSURE ALT
- 1,083 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
Nearby Ohio fields
- 38I — Cook
Urbana · elev 1,150 ft
- KTZR — Bolton Field
Columbus · elev 904 ft
- I54 — Mad River Airpark
Tremont City · elev 958 ft
- I74 — Grimes Field
Urbana · elev 1,068 ft
- KMRT — Union County
Marysville · elev 1,021 ft
- KSGH — Springfield/Beckley Municipal
Springfield · elev 1,051 ft
- KOSU — Ohio State University
Columbus · elev 906 ft
- I23 — Fayette County
Washington Court House · elev 980 ft
Frequently asked questions
How high does density altitude get at KUYF in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Madison County reaches roughly 2,827 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 KUYF on an average day?
It swings with the seasons: from roughly −896 ft at the coldest month's average temperature to about 2,214 ft at the warmest month's — all from a constant field elevation of 1,082 ft. The month-by-month table above carries the full year.
What is the field elevation of Madison County?
1,082 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KUYF (ICAO) / UYF (FAA), in London, Ohio.