When is the bad luck day?

The mold will enter from June 6th to 15, and will be released from July 8th to 19. There is an obvious rainy season in the eastern part of China, with a long rainy period and relatively concentrated rainfall, which is caused by the north-south displacement of the main rain belt in the east-west direction and is a unique phenomenon in the seasonal transformation of the atmospheric circulation in East Asia at the turn of spring and summer. After mid-June, the rain belt remained in the Jianghuai basin, which is Meiyu. The time for rain belt to stay is called rainy season, the day when rainy season begins is called plum blossom, and the day when rainy season ends is called plum blossom.

Mild days refer to the rainy season. Enter the meiyu period. Different climate seasons and plum blossom periods vary from place to place.

According to the principle of combining circulation conditions with regional precipitation, during the period from late May to early July, the ground peak activity is frequent within the range of 29-33 degrees north latitude, and there are six rainy days for two consecutive periods. At the same time, referring to the banks of the lower reaches of the Yangtze River, the average temperature of each station is basically stable at above 22 degrees, which is regarded as the start date of entering Mei. In the time curve of rainy days, rainfall, cloud cover and other climatic factors in early summer, there are also days that suddenly increase (that is, there is a turning point), which is regarded as the average plum blossom period.

Traditionally, in China, the judgment of plum entry and plum exit is based on the combination of solar terms and branches. According to the calendar, the first third day after mango seeds is plum blossom, and the first last day in Xia Hou is plum blossom. If the weather on the awning day is C, it is designated as entering the plum blossom, and if it is not in the shallow summer, it is designated as leaving the plum blossom.