Boonville is a city of approximately 1,000 people in California, United States. Located in the Pacific Time Zone at 39°N latitude.
In 2025, Boonville recorded an average annual temperature of 59°F — about 0.8°F below the 30-year normal of 60°F. The hottest day reached 100°F in August; the coldest was 32°F in February. Total precipitation was 46 inches (wetter than usual). The wettest month was December.
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