In climatology, spring refers to the period when the temperature rises from 10 C to 22 C after winter. The southern parts of Fujian and Yunnan provinces are the earliest destinations for spring in China, usually in late February. Most of the southern provinces of Zhejiang, Jiangxi, and Hunan, welcome spring in early March. In early April, spring arrives at the northernmost Beijing and Tianjin region of the North China Plain. In May, spring begins to wake up the south of Harbin, Heilongjiang province. In the western region of China, the spring wind begins in April in Northern Xinjiang, and in March in Southern Xinjiang.
In March, the beginning month of spring, the temperature undergoes sudden changes, the weather is sometimes cold and sometimes warm, and the temperature rises rapidly, and rainfall increases. Except for the northeast and northwest parts of China, the average temperature in most areas has risen to above 0 C. The average daily temperature in North China is 2-8 C, and that in the areas along the Yangtze River and South China is above 8 C.