Toledo, Oregon · field elev 12 ft
Density Altitude at Toledo State (5S4)
Toledo State sits at 12 ft, and even a typical September afternoon (66 °F) only lifts density altitude to about 490 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 | 45.3 | −884 ft | 51.3 | −479 ft |
| February | 45.3 | −884 ft | 52.2 | −418 ft |
| March | 47.0 | −769 ft | 53.7 | −318 ft |
| April | 48.6 | −660 ft | 55.2 | −218 ft |
| May | 52.3 | −412 ft | 58.4 | −7 ft |
| June | 55.4 | −205 ft | 61.2 | 177 ft |
| July | 57.8 | −46 ft | 64.2 | 373 ft |
| August | 57.9 | −40 ft | 64.5 | 393 ft |
| September | 57.6 | −59 ft | 66.0 | 490 ft |
| October | 53.8 | −312 ft | 61.0 | 164 ft |
| November | 48.4 | −674 ft | 54.6 | −258 ft |
| December | 44.3 | −952 ft | 49.9 | −573 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 5S4
DENSITY ALTITUDE
Field elevation 12 ft — the air behaves like 490 ft.
- PRESSURE ALT
- 13 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 Oregon fields
- KONP — Newport Municipal
Newport · elev 160 ft
- R33 — Wakonda Beach State
Waldport · elev 41 ft
- S45 — Siletz Bay State
Gleneden Beach · elev 69 ft
- KCVO — Corvallis Municipal
Corvallis · elev 250 ft
- 7S5 — Independence State
Independence · elev 180 ft
- KPFC — Pacific City State
Pacific City · elev 10 ft
- S12 — Albany Municipal
Albany · elev 227 ft
- 6S2 — Florence Municipal
Florence · elev 51 ft
Frequently asked questions
How high does density altitude get at 5S4 in summer?
On a typical September afternoon — around 66 °F at the nearest NOAA normals station — density altitude at Toledo State reaches roughly 490 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 5S4 on an average day?
It swings with the seasons: from roughly −952 ft at the coldest month's average temperature to about −40 ft at the warmest month's — all from a constant field elevation of 12 ft. The month-by-month table above carries the full year.
What is the field elevation of Toledo State?
12 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 5S4 (FAA), in Toledo, Oregon.