Auburn, Washington · field elev 63 ft
Density Altitude at Auburn Municipal (S50)
Auburn Municipal sits at 63 ft, and even a typical July afternoon (78 °F) only lifts density altitude to about 1,338 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 | 42.2 | −1,032 ft | 48.4 | −611 ft |
| February | 43.7 | −930 ft | 51.2 | −422 ft |
| March | 47.4 | −678 ft | 55.8 | −115 ft |
| April | 52.1 | −362 ft | 61.4 | 254 ft |
| May | 58.4 | 56 ft | 68.0 | 682 ft |
| June | 62.6 | 332 ft | 71.9 | 932 ft |
| July | 67.8 | 669 ft | 78.3 | 1,338 ft |
| August | 67.8 | 669 ft | 78.3 | 1,338 ft |
| September | 62.5 | 325 ft | 72.5 | 971 ft |
| October | 53.4 | −275 ft | 61.3 | 247 ft |
| November | 45.9 | −780 ft | 52.7 | −322 ft |
| December | 41.2 | −1,101 ft | 47.0 | −705 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 S50
DENSITY ALTITUDE
Field elevation 63 ft — the air behaves like 1,319 ft.
- PRESSURE ALT
- 64 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 Washington fields
- S36 — Crest Airfield
Covington · elev 472 ft
- KSEA — Seattle-Tacoma International
Seattle · elev 432 ft
- KRNT — Renton Municipal
Renton · elev 32 ft
- KBFI — Boeing Field/King County International
Seattle · elev 22 ft
- 2S1 — Vashon Municipal
Vashon · elev 316 ft
- KPLU — Pierce County/Thun Field
Puyallup · elev 538 ft
- KTIW — Tacoma Narrows
Tacoma · elev 295 ft
- 3B8 — Shady Acres
Spanaway · elev 445 ft
Frequently asked questions
How high does density altitude get at S50 in summer?
On a typical July afternoon — around 78 °F at the nearest NOAA normals station — density altitude at Auburn Municipal reaches roughly 1,338 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 S50 on an average day?
It swings with the seasons: from roughly −1,101 ft at the coldest month's average temperature to about 669 ft at the warmest month's — all from a constant field elevation of 63 ft. The month-by-month table above carries the full year.
What is the field elevation of Auburn Municipal?
63 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is S50 (FAA), in Auburn, Washington.