With a population of around 25,300, Hercules sits in California, United States. The city operates in the Pacific Time Zone.
In 2025, Hercules recorded an average annual temperature of 58°F — right at the 30-year normal of 58°F. The hottest day reached 94°F in August; the coldest was 36°F in January. Total precipitation was 20 inches (near normal). The wettest month was February.
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