Eugene, Oregon · field elev 374 ft
Density Altitude at Mahlon Sweet Field (KEUG)
Mahlon Sweet Field sits at 374 ft, and even a typical August afternoon (84 °F) only lifts density altitude to about 2,092 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 | 41.4 | −700 ft | 48.1 | −245 ft |
| February | 43.3 | −570 ft | 51.5 | −17 ft |
| March | 46.9 | −326 ft | 56.6 | 322 ft |
| April | 50.7 | −70 ft | 61.3 | 631 ft |
| May | 56.1 | 289 ft | 68.1 | 1,071 ft |
| June | 60.9 | 604 ft | 74.2 | 1,460 ft |
| July | 67.8 | 1,052 ft | 84.0 | 2,074 ft |
| August | 67.9 | 1,058 ft | 84.3 | 2,092 ft |
| September | 62.9 | 735 ft | 78.0 | 1,700 ft |
| October | 53.4 | 110 ft | 64.9 | 865 ft |
| November | 45.5 | −421 ft | 53.2 | 97 ft |
| December | 40.6 | −755 ft | 46.8 | −333 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 KEUG
DENSITY ALTITUDE
Field elevation 374 ft — the air behaves like 2,074 ft.
- PRESSURE ALT
- 375 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
- 77S — Hobby Field
Creswell · elev 541 ft
- 61S — Cottage Grove State
Cottage Grove · elev 645 ft
- KCVO — Corvallis Municipal
Corvallis · elev 250 ft
- S30 — Lebanon State
Lebanon · elev 349 ft
- S12 — Albany Municipal
Albany · elev 227 ft
- 5S0 — Oakridge State
Oakridge · elev 1,393 ft
- 6S2 — Florence Municipal
Florence · elev 51 ft
- R33 — Wakonda Beach State
Waldport · elev 41 ft
Frequently asked questions
How high does density altitude get at KEUG in summer?
On a typical August afternoon — around 84 °F at the nearest NOAA normals station — density altitude at Mahlon Sweet Field reaches roughly 2,092 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 KEUG on an average day?
It swings with the seasons: from roughly −755 ft at the coldest month's average temperature to about 1,058 ft at the warmest month's — all from a constant field elevation of 374 ft. The month-by-month table above carries the full year.
What is the field elevation of Mahlon Sweet Field?
374 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KEUG (ICAO) / EUG (FAA), in Eugene, Oregon.