What month is the plum rain?

What month is the rainy season In fact, the criteria for entering Mei are complicated, but generally speaking, there are large rainfall areas in the middle and lower reaches of the Yangtze River and South China. There is a subtropical high near 20 degrees north latitude in the south to prevent the rain area from going south, causing the rain area to wander back and forth in the middle and lower reaches of the Yangtze River, resulting in long-term heavy rainfall. The weather penalty has such characteristics that it can almost be considered as "entering the plum blossom".

From the analysis of atmospheric circulation characteristics, the subtropical high over the Pacific Ocean usually increases in June, and by mid-June, the subtropical high is stable over South China, and the southwest warm and humid airflow on its north side extends to the south of the Yangtze River. At this time, the power of cold air in the north is not to be outdone. The cold air in the north meets the warm and humid air in the south in the middle and lower reaches of the Yangtze River, forming a long and narrow rain belt. At this time, the plums in the south of the Yangtze River are ripe, and the people call the continuous rainy weather during this period "Meiyu", which is the beginning of Meiyu. Generally, in the first half of July, with the subtropical high strengthening again, the Meiyu belt moved northward to the north of Huaihe River, meaning "plum blossom". After Plum Blossom, it began in midsummer and entered the dog days. Because the atmospheric circulation changes differently every year, the "plum blossom" and "plum blossom" are different every year.

Meteorologically speaking, the first day when the continuous rainy weather in early summer exceeds 6-7 days and the daily average temperature exceeds 22 degrees is called plum blossom day, and the day when the continuous rainy weather ends is called plum blossom day.

In the calendar, the so-called "time of entering Mei" is relatively fixed and is calculated according to the method of "diary of branches and branches". It takes the first "C" day after the "canopy" as the "plum blossom" and the first "non-"day after the "light summer" as the "plum blossom". The time of "entering Mei" is always between June 6th and June 15, and the time of "leaving Mei" is between July 8th and July 19.

Therefore, the weather "entering Mei" and the calendar "entering Mei" are inconsistent in time distribution, but they may just be together in some years.

When is the rainy season in the south? What month is it now? In the middle and lower reaches of the Yangtze River in China, Taiwan Province Province, south-central Japan and south Korea, there are continuous rainy days in June and July every year. Because now is the mature period of plums in Jiangnan, it is called "Meiyu", and this period is called Meiyu season. In the rainy season, the air humidity is high and the temperature is high, so clothes are easy to get moldy, so some people call the rainy season "moldy rain". After the rainy season, the weather began to be dominated by the Pacific subtropical high and officially entered the hot summer.

The beginning date of plum rain is "entering plum" (or "falling plum") and the end date is "leaving plum" (or "breaking plum"). Generally speaking, the higher the latitude, the later the meiyu begins. Plum blossoms in Taiwan Province Province are in full bloom in mid-May and mid-June. In the middle and lower reaches of the Yangtze River in China, plum blossoms enter in mid-May and blossom in early June. But there are differences in specific places. In Zhejiang, plum blossom begins at the beginning of May in the lunar calendar, specifically, it begins to bloom on the first day after the awning, and the first plum blossom from summer to sunrise in the future.

It takes more than a week to get used to going to the north, and you can get used to it slowly.

Meiyu season, namely Meiyue, also known as Huangmeitian, refers to the natural climate phenomenon of continuous rainy weather in the middle and lower reaches of the Yangtze River, Taiwan Province Province, south-central Japan and South Korea. Because plum rains occurred in the mature period of plums in the south of the Yangtze River, people in China call this climate phenomenon "plum rains", and this period is also called "plum rains season".

What does the rainy season mean? What month is it usually? Meiyu period refers to a period of continuous rainy weather from mid-June to mid-July and early summer. The middle and lower reaches of the Yangtze River in China refer to the range of 28 d 34 N east of Yichang, or the narrow area from Jianghuai Valley to southern Japan.

During this period, due to the monsoon adjustment of atmospheric circulation, the warm and humid airflow from the ocean and the cold air from north to south continue to meet in the Jianghuai Basin, forming an east-west quasi-static front, commonly known as Meiyu Front, which makes the rain continuous and the rainstorm concentrated. It is called "Meiyu" or "Meiyu weather" because it is in the yellow ripening period of plums in the south of the Yangtze River. Because of the high temperature and humidity at this time, clothes are prone to mildew, also known as "mildew rain".

What does the rainy season mean? What month is it usually? Meiyu refers to a period of continuous rainy weather from mid-June to mid-July and early summer. The middle and lower reaches of the Yangtze River in China refer to the range of 28-34 N east of Yichang, or the narrow area from Jianghuai Valley to southern Japan. The air humidity in this period is very high, and everything is easy to get damp and moldy, so people gave Meiyu a different name, called "Moldy Rain" and Xie Zaihang's Five Miscellaneous Torches in Ming Dynasty? "Tianbu No.1" describes: "Every year in March and April in the south of the Yangtze River, it rains bitterly, and everything is moldy, commonly known as Meiyu, and it is covered when it is green and yellow. From Xu Huai to the north, it is often dry in spring and summer. At the turn of June and July, it rained heavily and everything was moldy. " Li Shizhen, an outstanding medical scientist in Ming Dynasty, clearly pointed out in Compendium of Materia Medica: "Plum rain or mildew rain, when it comes to clothes and things, will produce black mold." .

When is the rainy season in the middle and lower reaches of the Yangtze River in China? The rainy season is from the end of June to the beginning of July every year. At this time, the sky was overcast and the precipitation continued. In ancient times, there was a proverb that "rain hits Huangmeitou, and there is no sun for forty-five days", which is characterized by high temperature and high humidity in rainy season. Not only that, coastal cities in South China will also be hit by typhoons, and the weather and humidity will increase, making clothes and furniture more susceptible to mildew and moisture.

Plum entry: if the average temperature exceeds 22℃ for five consecutive days and it rains for four consecutive days, it is considered as plum entry.

Plum blossom: On the contrary, if the temperature exceeds 30℃ for five consecutive days and it doesn't rain, it means plum blossom.

Therefore, the rainy season also depends on the weather, and there is no specific time setting.

The rainy season in southern China refers to the month in the middle and lower reaches of the Yangtze River in China, usually from mid-June to early July every year.

What month is it rainy? The above is not specific enough.

Meiyu occurred in the Jianghuai area in May and June (the rainy season in Nanjing is from mid-June to early July) because the subtropical high moved northward to the Jianghuai area, just at the northwest edge of the subtropical high, and the south wind prevailed. At this time, the cold air from the north is still retreating, and the cold and warm air are evenly matched, hovering south of the Yangtze River, forming a month-long rainy weather. At this time, the plum is ripe, so it is called plum rain.

When is the rainy season in Shanghai? In Shanghai, it is usually rainy season from mid-June to early July every year. In the past few days, the sky has been gloomy and the precipitation has been constant, sometimes big and sometimes small. Therefore, there is a popular proverb in southern China: When the rain hits Huangmei's head, there will be no sun for forty-five days. Continuous rain, high temperature and high humidity are the main characteristics of plum rain. Why is there a rainy season in Shanghai? Because Shanghai is located in the Meiyu belt in the middle and lower reaches of the Yangtze River. Meiyu refers to a period of continuous rainy weather from mid-June to early summer in mid-July, 28°-34° N east of Yichang in the middle and lower reaches of the Yangtze River in China, or from Jianghuai Basin to southern Japan. In the past few days, the sky has been gloomy and the precipitation has been constant, sometimes big and sometimes small. Therefore, there is a popular proverb in southern China: When the rain hits Huangmei's head, there will be no sun for forty-five days. Continuous rain, high temperature and high humidity are the main characteristics of plum rain. How did the name Meiyu come from? Initially, it originated from a meteorological term in China. In ancient times, Meiyu was usually called Huang Meiyu. As early as the Han Dynasty, there were many proverbs about Huang Meiyu. In the Jin Dynasty, it rained from summer to Sunday, which is called the record of Huang Meiyu. Since the Tang and Song Dynasties, there have been many interesting descriptions about Meiyu. Liu Zongyuan, a writer in the Tang Dynasty, once wrote a poem about Meiyu: Shi Mei welcomes Meiyu, and it is magnificent to arrive in late spring. He was worried about the night of the ape, and his dream was shattered. The sea fog connects the South Pole, the river clouds darken Beijin, and plain clothes goes today, not for the dust of the imperial city. Among them, when the plum meets the rain, that is to say, after the plum matures, it will rain at three o'clock from summer to the future. At present, the meteorological plum rain refers to a rainy weather that transits from early summer to midsummer.