Small Cold and Severe Cold Weather in the Huaihe River Basin

The Huaihe River Basin is located in the climate transition zone between the north and the south of my country. The north of the Huaihe River is a warm temperate zone, and the south of the Huaihe River is a northern subtropical zone. The temperature changes increase from north to south. The minor cold and major cold seasons are the coldest seasons of the year. The area is dry and rainless, with the lowest monthly average temperature around 0°C and the extreme lowest temperature reaching -24.1°C.