About DuPont, WA's Climate & Weather History

DuPont is a city of approximately 9,400 people in Washington, United States. Located in the Pacific Time Zone at 47.1°N latitude.

In 2025, DuPont recorded an average annual temperature of 52°F. The hottest temperatures reached 91°F in August; the coolest were 22°F in February. Total precipitation for the year was 48 inches, with the wettest month being December. Snowfall for the year totaled approximately 3 inches.