Subtropical humid climates are characterized by warm temperatures and high humidity throughout the year. These regions typically experience hot summers and mild winters, with average temperatures often exceeding 18°C (64°F) in the coldest month. Precipitation is abundant, with rainfall distributed fairly evenly across the seasons, supporting lush vegetation. This climate type is commonly found in areas such as the southeastern United States, parts of China, and Australia. The combination of warmth and moisture creates ideal conditions for diverse ecosystems, including forests and wetlands, making subtropical humid regions rich in biodiversity.