About Boronda, CA's Climate & Weather History

With a population of around 1,700, Boronda sits in California, United States. The city operates in the Pacific Time Zone.

In 2025, Boronda recorded an average annual temperature of 56°F — about 2.0°F below the 30-year normal of 58°F. The hottest day reached 86°F in August; the coldest was 33°F in February. Total precipitation was 21 inches (wetter than usual). The wettest month was February.