Norwalk, Ohio · field elev 853 ft
Density Altitude at Norwalk/Huron County (5A1)
Norwalk/Huron County sits at 853 ft, and even a typical July afternoon (83 °F) only lifts density altitude to about 2,597 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 | 26.2 | −1,161 ft | 33.4 | −656 ft |
| February | 28.3 | −1,013 ft | 36.2 | −462 ft |
| March | 36.7 | −427 ft | 45.5 | 174 ft |
| April | 48.4 | 369 ft | 58.7 | 1,051 ft |
| May | 60.1 | 1,143 ft | 70.2 | 1,794 ft |
| June | 69.5 | 1,749 ft | 79.3 | 2,367 ft |
| July | 73.3 | 1,990 ft | 83.0 | 2,597 ft |
| August | 71.4 | 1,870 ft | 81.3 | 2,491 ft |
| September | 65.0 | 1,460 ft | 75.5 | 2,129 ft |
| October | 53.3 | 696 ft | 63.3 | 1,351 ft |
| November | 41.7 | −84 ft | 49.7 | 456 ft |
| December | 31.8 | −767 ft | 38.5 | −303 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 5A1
DENSITY ALTITUDE
Field elevation 853 ft — the air behaves like 2,597 ft.
- PRESSURE ALT
- 854 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
- I64 — Ortner
Wakeman · elev 848 ft
- 88D — Hinde
Huron · elev 609 ft
- 8G1 — Willard
Willard · elev 967 ft
- KLPR — Lorain County Regional
Lorain/Elyria · elev 793 ft
- 5D9 — Bandit Field Airdrome
Clyde · elev 805 ft
- 1G1 — Elyria
Elyria · elev 758 ft
- KPCW — Erie-Ottawa International
Port Clinton · elev 590 ft
- S24 — Sandusky County Regional
Fremont · elev 665 ft
Frequently asked questions
How high does density altitude get at 5A1 in summer?
On a typical July afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Norwalk/Huron County reaches roughly 2,597 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 5A1 on an average day?
It swings with the seasons: from roughly −1,161 ft at the coldest month's average temperature to about 1,990 ft at the warmest month's — all from a constant field elevation of 853 ft. The month-by-month table above carries the full year.
What is the field elevation of Norwalk/Huron County?
853 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 5A1 (FAA), in Norwalk, Ohio.