Arcata, in California, United States, is home to roughly 17,800 people in the Pacific Time Zone at 40.9°N latitude.
In 2025, Arcata recorded an average annual temperature of 52°F — right at the 30-year normal of 53°F. The hottest day reached 78°F in October; the coldest was 28°F in February. Total precipitation was 61 inches (wetter than usual). The wettest month was March.
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