Xiangtan belongs to the humid monsoon climate zone in the eastern part of the middle subtropical zone, and is rich in water and heat resources. The main characteristics of the annual climate are: warm climate, annual average temperature 17 degrees, and distinct seasons; Sufficient heat, concentrated rain, annual rainfall is generally around 1500mm; Spring is warm and changeable, and summer and autumn are dry; The severe cold period is short and the hot summer period is long. The highest temperature is 40 degrees in summer and below zero in winter.