Brentwood, in California, United States, is home to roughly 33,300 people in the Pacific Time Zone at 34.1°N latitude.
In 2025, Brentwood recorded an average annual temperature of 62°F — about 0.9°F below the 30-year normal of 63°F. The hottest day reached 97°F in May; the coldest was 38°F in January. Total precipitation was 24 inches (wetter than usual). The wettest month was November.
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