When does spring begin?

It can be seen from the distribution map of the average start date of spring that the southern part of Fujian and Yunnan provinces is the earliest place where spring comes to China. Just after autumn, spring follows, because there is no winter here. Therefore, when the temperature drops to the lowest point of the year 1, it can be considered that autumn ends and the Spring Festival begins. Most southern provinces such as Zhejiang, Jiangxi and Hunan to the north of Nanling entered spring in early March. In early April, spring has come to Beijing and Tianjin, the northernmost part of North China Plain. Around May Day, the southern part of Heilongjiang Province began to return to the earth in spring, but it was not until late May that the breath of spring could spread to every corner of Heilongjiang Province in the northernmost part of China. In the west of China, the Junggar Basin in the north of Xinjiang begins in the spring of April, and the spring breeze reaches the Tarim Basin in the south of Xinjiang in March. Most parts of the Qinghai-Tibet Plateau enter spring in April and May, but even in the hottest month, the temperature in northern Tibet still cannot rise in spring and autumn.