What's the climate like in Xihu District of Hangzhou?

Hangzhou is located in the middle subtropical transition zone, which is warm and humid, with four distinct seasons, abundant sunshine and rainfall. In a year, with the alternating control of winter and summer monsoon, the atmospheric circulation background, main weather systems and weather conditions will change obviously seasonally, forming the climate characteristics of rainy spring, hot flashes in summer, dry autumn and wet and cold winter. Due to the complex and diverse topography and uneven terrain in Hangzhou, the regional distribution of climate resources such as temperature, light, water and wind is uneven, and local microclimate resources are rich. However, due to the instability of monsoon advance and retreat and duration, especially the great change of monsoon intensity, abnormal cold, hot, dry and wet conditions often lead to disastrous weather and climate events.