With a population of around 23,700, Barstow sits in California, United States. The city operates in the Pacific Time Zone.
In 2025, Barstow recorded an average annual temperature of 67°F — about 1.2°F below the 30-year normal of 68°F. The hottest day reached 108°F in July; the coldest was 29°F in January. Total precipitation was 7 inches (wetter than usual). The wettest month was November.
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