Laiyuan's climate is characterized by cold winters with temperatures often below freezing. Spring arrives in late March, bringing mild temperatures ranging from 7-9°C, creating a gentle warming trend. Summer months are hot and humid, with temperatures frequently reaching the mid-20s to low 30s. Autumn sees a return to comfortable temperatures, with averages returning to around 10-15°C by October. Winters are long and chilly, with temperatures often dipping below 0°C from December to February.