About Larchmont, CA's Climate & Weather History

Larchmont is a city of approximately 9,200 people in California, United States. Located in the Pacific Time Zone at 34.1°N latitude.

In 2025, Larchmont recorded an average annual temperature of 63°F — about 2.5°F below the 30-year normal of 66°F. The hottest day reached 102°F in May; the coldest was 38°F in January. Total precipitation was 24 inches (wetter than usual). The wettest month was November.