About Willowbrook, CA

Willowbrook, in California, United States, is home to roughly 36,000 people in the Pacific Time Zone at 33.9°N latitude.

Willowbrook has a humid subtropical climate. Average annual temperature is 66°F, with January lows around 49°F and July highs near 82°F. The city averages 14 inches of precipitation per year. The wettest month is typically February; the driest is August.