Bazhong has a monsoon-influenced humid subtropical climate which is largely mild and humid, with four distinct seasons. Winter is short, mild, and foggy, though actual precipitation is low. January averages 5.8 °C (42.4 °F), and while frost may occur, snow is rare. Summers are long, hot and humid, with temperatures often reaching 33 °C (91 °F). The daily average in July and August is around 27 °C (81 °F), with August being slightly warmer. Spring is warm and temperatures rise quickly but unstably, and hail is common. Rainfall is light in winter and can be heavy in summer, and more than 70% of the annual total occurs between May and September. The annual frost-free period lasts between 260 and 280 days.