What does it mean to be a plum blossom?

Entering plum is also called "entering mildew" and "entering plum". Refers to the day when the rainy season begins.

Refers to entering the meiyu period. Different climate seasons and plum blossom periods vary from place to place. Song Luyou's poem "Into the Plum": "Light rain and light clouds enter the Plum, and pomegranate and day lily bloom for a while." Huang Meiyu in Summer by Chen Yuanyuanliang: The Outline of the Four Seasons says,' Plum rains when the plum is ripe'. "In addition, Fujian people regard Geng Ri of Xia Hou as plum blossom, and Ren Ri after Mang Zi as plum blossom. "

Conditions and standards for plum entry

In the first five days of May, the subtropical high is at the ridge line of120 E ≥18 N, and the average daily temperature is ≥22℃ in at least three of the five days. There must be four rainy days in the first five days after the plum blossom (including rainy days measured by suburban weather stations); If the plum rains are segmented, the temperature after each segment of plum rains shall be ≥22℃.