Willoughby, Ohio · field elev 626 ft
Density Altitude at Lake County Exec (KLNN)
Lake County Exec sits at 626 ft, and even a typical July afternoon (82 °F) only lifts density altitude to about 2,276 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 | 30.2 | −1,163 ft | 36.8 | −703 ft |
| February | 31.4 | −1,079 ft | 38.7 | −572 ft |
| March | 38.2 | −606 ft | 46.1 | −67 ft |
| April | 49.2 | 141 ft | 58.1 | 732 ft |
| May | 60.3 | 876 ft | 69.1 | 1,445 ft |
| June | 69.8 | 1,489 ft | 78.1 | 2,014 ft |
| July | 74.6 | 1,794 ft | 82.3 | 2,276 ft |
| August | 73.7 | 1,737 ft | 81.6 | 2,233 ft |
| September | 67.8 | 1,361 ft | 76.2 | 1,895 ft |
| October | 57.0 | 660 ft | 64.9 | 1,175 ft |
| November | 45.7 | −94 ft | 52.6 | 368 ft |
| December | 36.2 | −744 ft | 42.0 | −346 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 KLNN
DENSITY ALTITUDE
Field elevation 626 ft — the air behaves like 2,258 ft.
- PRESSURE ALT
- 627 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
- KCGF — Cuyahoga County
Cleveland · elev 876 ft
- 2G1 — Concord Airpark
Painesville · elev 999 ft
- KBKL — Burke Lakefront
Cleveland · elev 584 ft
- 7G8 — Geauga County
Middlefield · elev 1,174 ft
- 7D8 — Gates
Garrettsville · elev 1,104 ft
- KCLE — Cleveland-Hopkins International
Cleveland · elev 800 ft
- KPOV — Portage County
Ravenna · elev 1,198 ft
- KHZY — Northeast Ohio Regional
Ashtabula · elev 926 ft
Frequently asked questions
How high does density altitude get at KLNN in summer?
On a typical July afternoon — around 82 °F at the nearest NOAA normals station — density altitude at Lake County Exec reaches roughly 2,276 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 KLNN on an average day?
It swings with the seasons: from roughly −1,163 ft at the coldest month's average temperature to about 1,794 ft at the warmest month's — all from a constant field elevation of 626 ft. The month-by-month table above carries the full year.
What is the field elevation of Lake County Exec?
626 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KLNN (ICAO) / LNN (FAA), in Willoughby, Ohio.