Why does it always rain in Tomb-Sweeping Day?

Qingming is a simple solar term, just like other solar terms. It starts from winter to the future 105 and after the vernal equinox 15, and the gas length in Tomb-Sweeping Day is 15, followed by Grain Rain. Let's take a look at why it always rains in Tomb-Sweeping Day. I hope you like it.

Why does it always rain in Tomb-Sweeping Day?

Before and after Tomb-Sweeping Day, it was the time when winter went and spring came. At this time, the cold air force began to weaken gradually, the subtropical high strengthened its westward extension, and the warm and humid air on the ocean began to itch to try. As a result, cold and warm air often meets in the south, and once it is evenly matched, it will cause rainy days in the south;

Secondly, there are many depressions in spring. Clouds move very fast at low pressure. So once the low pressure passes, there will be gloomy and rainy weather. In addition, before and after Tomb-Sweeping Day, warm and humid air from the ocean was continuously transported to the mainland, and there was a lot of water vapor in the atmosphere, which easily condensed into Mao Mao rain at night.

Why does it always rain in Tomb-Sweeping Day?

Reason 1: Qingming is the fifth solar term in the twenty-four solar terms of the lunar calendar, which indicates the official start of the warm spring season in bloom. During Tomb-Sweeping Day, it will rain all over the country. Because early April is the early spring season, in the past winter, heating quality was the main factor; In the coming season, heating quality is the main thing. Spring is the turn of winter and summer, and the cold and warm air masses are very active, interacting frequently and fighting with each other, which leads to a little changeable weather.

Reason 2: Every year in Tomb-Sweeping Day, around April 5th, a summer monsoon from the ocean prevails, which will bring a lot of rain.

Reason 3: Before and after Tomb-Sweeping Day, there was a lot of water vapor in the atmosphere in the south of the Yangtze River, which easily condensed into Mao Mao rain at night. For these reasons, there are many rains during the Qingming Festival.

During the Qingming period, the average daily temperature in most parts of the country has risen above 12℃ except the northeast and northwest regions. From the north and south of the Yangtze River to the inside and outside of the Great Wall, there are busy scenes of spring ploughing everywhere.

"It rains in succession during the Qingming Festival" refers to the climate characteristics of the south of the Yangtze River. At this time, it is often cloudy and sunny, and abundant water can generally meet the needs of crop growth. What is annoying and can't be ignored is the harm of wet stains and insufficient light caused by too much rain. However, in the vast area north of the Huanghuai Plain, there is still little precipitation during the Qingming period. Crops and spring sowing often lack water. At this time, rain is very precious. These areas should do a good job in spring irrigation while storing water and preserving soil moisture to prevent the threat of spring drought.

In northern China, the temperature rises rapidly, precipitation is scarce, and it is dry and windy, which is the time of dusty weather in a year. In many northern areas, the average temperature in April has reached 65,438+00℃ ~ 65,438+05℃ ... Although spring has not yet come in parts of northeast and northwest China, according to the surface climate data of 197 1-2000, the average extreme maximum temperature in Hohhot in March has reached1. It is not surprising that the temperature in these areas sometimes rises significantly during Qingming, that is, in mid-April. Vegetation germination in forest farm coincides with spring outing, grave sweeping and tree planting season, so it is very important to prevent forest fires.

There is also a legend about rain in Tomb-Sweeping Day.

Legend has it that a long time ago, in a village in Jiang Nanan, a beautiful woman was attracted by local officials and wanted to be her concubine. Her family could not resist and had to marry her daughter, but the woman resolutely refused to marry and jumped into the river to escape. Fortunately, Duff was saved by a handsome and beautiful man. After being married to a man for a long time, they lived a happy life and soon gave birth to a boy.

Slowly, the woman learned that her husband was a dragon, not a man, and she didn't panic. The good times didn't last long. One year, all the food in the village died of drought. The woman kindly asked the man to cast spells to help the villagers through the disaster, but the jade emperor found out that the man was raining privately and was sentenced to death.

The woman was heartbroken and had no choice but to return home. I don't know how the news reached the county magistrate. When I found the woman back, I ordered her to be arrested and punished. The woman was kept in a pigsty and thrown into the river. At this critical moment, her little son became a dragon, trying to save his mother, but when he was rescued, he was already dead. From then on, Tomb-Sweeping Day's sons came to worship, so they followed the wind and rain all the way.