About Rowland Heights, CA's Climate & Weather History

Rowland Heights is a city of approximately 49,000 people in California, United States. Located in the Pacific Time Zone at 34°N latitude.

In 2025, Rowland Heights recorded an average annual temperature of 64°F — about 2.5°F below the 30-year normal of 66°F. The hottest day reached 103°F in May; the coldest was 38°F in January. Total precipitation was 22 inches (wetter than usual). The wettest month was November.