About Ferndale, WA's Climate & Weather History

With a population of around 13,000, Ferndale sits in Washington, United States. The city operates in the Pacific Time Zone.

In 2025, Ferndale recorded an average annual temperature of 51°F — right at the 30-year normal of 51°F. The hottest day reached 81°F in August; the coldest was 15°F in February. Total precipitation was 47 inches (wetter than usual). The wettest month was December.