About Gilbert, AZ's Climate & Weather History

With a population of around 248,000, Gilbert sits in Arizona, United States. The city operates in the Mountain Time Zone.

In 2025, Gilbert recorded an average annual temperature of 76°F — right at the 30-year normal of 76°F. The hottest day reached 117°F in August; the coldest was 34°F in January. Total precipitation was 13 inches (wetter than usual). The wettest month was November.