Climate almanac

DuPont

Washington, United States · 47.10°, -122.63°

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What is the climate like in DuPont?

The best time to visit DuPont is typically June – August, with trip comfort peaking in July (8.7/10). DuPont is warmest in August, when daily highs average 78°F (25°C), and coolest in February, when lows fall to about 38°F (3°C). The wettest month is typically December and the driest is July; the year sees roughly 53 in (1354 mm) of precipitation.

  • Best time to visitJune – August — comfort peaks in July (8.7/10)
  • Warmest monthAugust — average high 78°F (25°C)
  • Coolest monthFebruary — average low 38°F (3°C)
  • Wettest monthDecember (8.2 in (209 mm))
  • Driest monthJuly (0.4 in (10 mm))
  • Annual precipitation53 in (1354 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromGray AAF, 4 km away (1960-2026)