What are the climatic characteristics of Chenggu?

Chenggu is located in the transitional zone between the north subtropical zone and the warm temperate zone in China, with diverse landforms, a unique microclimate zone suitable for the three-dimensional layout of agriculture and the development of diversified business, and abundant natural resources.

Chenggu County is located inland, in the humid monsoon region of the north subtropical zone, and the polar continental air mass meets the tropical marine air mass in summer. In the north, there are east-west and tall Qinling Mountains, which can block the cold air flow from northwest to south. The Micang Mountain barrier in the south slows down the warm and humid airflow in the southwest, southeast and north in summer. Qinling massif plays the role of heat preservation and moisture preservation. In addition, the four rivers in the middle regulate the local humidity. The general climate is characterized by no severe cold in winter, no intense heat in summer, abundant rainfall, wet seasons, the same season of rain and heat, and alternating dry and wet. However, due to the long north-south, narrow east-west, high north-south, low middle and diverse landform types, a variety of climatic characteristics with vertical and horizontal differences have been formed, with uneven distribution in time and space and great differences between regions. In time series, winter is influenced by Siberian cold air southward, with more cold days and less precipitation; In spring, the low trough and high ridge in the westerly belt move, the warm and humid airflow in the southwest gradually moves northward, the precipitation increases, and the temperature rises rapidly, but the range is large; In summer, affected by the subtropical high in the western Pacific, there is a lot of precipitation with high intensity, and the rain and heat are in the same season, but the distribution is uneven; In autumn, the warm air mass weakens and withdraws southward, the cold air moves southward, and the temperature drops early, which is easy to form rainy and cold weather.