About Deer Park, CA's Climate & Weather History

With a population of around 1,400, Deer Park sits in California, United States. The city operates in the Pacific Time Zone.

In 2025, Deer Park recorded an average annual temperature of 59°F. The hottest temperatures reached 100°F in September; the coolest were 25°F in February. Total precipitation for the year was 44 inches, with the wettest month being February. Snowfall for the year totaled approximately 2 inches.