Answer
Kaifeng's climate is subtropical, characterized by hot and humid summers, with average temperatures ranging from 26 to 30 °C (78.8 to 86 °F), and cold, dry winters, with average temperatures ranging from -1 to 4 °C (30.2 to 39.2 °F). The annual average temperature is approximately 14 °C (57.2 °F), and the annual precipitation is around 650 millimeters (25.59 inches), mostly occurring during the summer months.