Pasco, Washington · field elev 410 ft
Density Altitude at Tri-Cities (KPSC)
Tri-Cities sits at 410 ft, and even a typical July afternoon (93 °F) only lifts density altitude to about 2,639 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 | 34.6 | −1,125 ft | 41.4 | −655 ft |
| February | 38.4 | −862 ft | 48.6 | −167 ft |
| March | 45.8 | −356 ft | 58.6 | 498 ft |
| April | 52.7 | 108 ft | 67.0 | 1,044 ft |
| May | 61.4 | 681 ft | 76.5 | 1,649 ft |
| June | 67.8 | 1,096 ft | 83.1 | 2,062 ft |
| July | 74.7 | 1,536 ft | 92.5 | 2,639 ft |
| August | 73.2 | 1,441 ft | 90.7 | 2,530 ft |
| September | 64.2 | 864 ft | 80.9 | 1,925 ft |
| October | 52.1 | 68 ft | 65.8 | 967 ft |
| November | 40.9 | −690 ft | 49.9 | −79 ft |
| December | 34.1 | −1,160 ft | 41.0 | −683 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 KPSC
DENSITY ALTITUDE
Field elevation 410 ft — the air behaves like 2,670 ft.
- PRESSURE ALT
- 411 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
- KRLD — Richland
Richland · elev 394 ft
- S40 — Prosser
Prosser · elev 706 ft
- W09 — Lower Monumental State
Kahlotus · elev 813 ft
- S70 — Othello Municipal
Othello · elev 1,149 ft
- S95 — Martin Field
College Place · elev 750 ft
- 1S5 — Sunnyside Municipal
Sunnyside · elev 768 ft
- KALW — Walla Walla Regional
Walla Walla · elev 1,194 ft
- M94 — Desert Aire Regional
Mattawa · elev 586 ft
Frequently asked questions
How high does density altitude get at KPSC in summer?
On a typical July afternoon — around 93 °F at the nearest NOAA normals station — density altitude at Tri-Cities reaches roughly 2,639 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 KPSC on an average day?
It swings with the seasons: from roughly −1,160 ft at the coldest month's average temperature to about 1,536 ft at the warmest month's — all from a constant field elevation of 410 ft. The month-by-month table above carries the full year.
What is the field elevation of Tri-Cities?
410 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KPSC (ICAO) / PSC (FAA), in Pasco, Washington.