202 1 plum blossom entrance and plum blossom exit time calendar network

Meiyu around June 7, 2002/kloc-0 and July 10 refers to a period of continuous rainy weather in the middle and lower reaches of the Yangtze River in China from mid-June to mid-July every year. At this time, the utensils are easy to get moldy, so they are also called mildew rain, and plums in the south of the Yangtze River are also called plum rain or Huang Meiyu when they are ripe.

Plum entry: the average temperature exceeds 22℃ for 5 consecutive days, and it is considered as plum entry when it rains for 4 consecutive days; Plum blossom: On the contrary, if the average temperature exceeds 30℃ for five consecutive days and it doesn't rain, it means plum blossom. Therefore, the rainy season in and out of Mei also depends on the weather, and there is no specific time setting.

What does it mean to enter plum blossom? 1. Enter the plum blossom period. The flowering period of plum blossoms is different with different climatic seasons in different places.

2, entering the plum is also called entering the mold into the plum. Refers to the day when the rainy season begins.

Meteorological Meiyu refers to the rainy weather from early summer to midsummer. Enter the meiyu period. The flowering period of plum blossoms is different with different climatic seasons in different places. We can't guide our production and life by the arrival and departure of plum blossoms on the calendar, but we should listen to the plum rain forecast released by the Meteorological Observatory.

In Jiangnan area, the mature period of plums in late spring and early summer is called Huangmei season. During this period, there were many rainy days in the middle and lower reaches of the Yangtze River in China, and the rain during this period was called Huang Meiyu. Because of rainy days, humid air and moldy clothes, Huang Meiyu is also called mildew rain. The start date of Huangmeitian is called entering Mei.

The standard of plum blossom is that it doesn't rain for five consecutive days, and the average temperature (minimum temperature plus maximum temperature divided by 2) exceeds 30 degrees, which is plum blossom.

In fact, plum blossom has three criteria: astronomy, climate and weather:

Astronomical standard, that is, the combination of solar terms and branches in China's ancient calendar, is a traditional calculation method in China, and the plum blossom time published in some modern desk calendars and calendars is calculated according to this standard.

Climate standard is to determine the approximate time of plum blossom in a certain area according to the average value of plum blossom for many years, which has certain reference value for people's life and production.

The weather standard has specific and detailed indicators, and local meteorological departments release the time of entering Mei according to these indicators. Therefore, the plum blossom time indicated on the calendar and desk calendar can only be used as a reference.