Folsom, in California, United States, is home to roughly 76,400 people in the Pacific Time Zone at 38.7°N latitude.
In 2025, Folsom recorded an average annual temperature of 62°F — about 1.3°F below the 30-year normal of 63°F. The hottest day reached 103°F in August; the coldest was 33°F in February. Total precipitation was 37 inches (wetter than usual). The wettest month was February.
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