Sedro Woolley, in Washington, United States, is home to roughly 10,800 people in the Pacific Time Zone at 48.5°N latitude.
In 2025, Sedro Woolley recorded an average annual temperature of 50°F — about 1.7°F below the 30-year normal of 52°F. The hottest day reached 86°F in August; the coldest was 7°F in February. Total precipitation was 64 inches (wetter than usual). Snowfall totaled 12 inches, above the 5-inch average. The wettest month was December.
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