Rosemead is a city of approximately 54,900 people in California, United States. Located in the Pacific Time Zone at 34.1°N latitude.
In 2025, Rosemead recorded an average annual temperature of 65°F — about 1.2°F below the 30-year normal of 66°F. The hottest day reached 102°F in May; the coldest was 39°F in January. Total precipitation was 26 inches (wetter than usual). The wettest month was November.
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