When did you enter Mei?

Usually in the middle of June every year. Mei is in the middle and lower reaches of the Yangtze River in China, Taiwan Province Province, south-central Japan and south Korea. Every June and July, there will be a climate phenomenon of continuous rainy days. Because now is the mature period of plums in Jiangnan, it is called "Meiyu", and this period is called Meiyu season.

Meiyu front rainstorm after entering Mei is a special weather in a specific area formed by the interaction of circulation systems of different scales. The variability of atmospheric circulation leads to the early and late meiyu period, and the meiyu duration is long and short. In some years, the Meiyu front is particularly active, and heavy rains are frequent, causing floods.

Normal Meiyu in the middle and lower reaches of the Yangtze River begins in mid-June and ends in mid-July, which is in the two solar terms of "ear seed" and "summer solstice". The meiyu period is about 20-30 days, and the rainfall is between 200-400 mm. Before and after "Little Summer", the main rainfall belt moves northward to the Yellow River and Huaihe River basins, and then to Shandong and North China. The Yangtze River basin began to change from rainy and humid weather to sunny and hot summer. According to statistics, this normal plum rain accounts for about half of the total.