Why does it always rain in Tomb-Sweeping Day?

First, when winter goes and spring comes, the cold air gradually weakens, and the warm and humid air on the ocean begins to move northward actively. Before and after Qingming, cold and warm air often meet, thus forming rainy weather. The second is that the air pressure is much lower in spring. The clouds in the low pressure move fast, the wind is strong and the rain is urgent. Whenever the low pressure passes, there will be rainy weather.

Tomb-Sweeping Day, also known as the outing festival, is at the turn of the vernal equinox and the end of spring, usually around April 5, after the vernal equinox 15 on the Gregorian calendar. From 65438 to 0935, the government of the Republic of China designated April 5th as a national statutory holiday in Tomb-Sweeping Day, also known as the National Tomb Sweeping Festival. On February 7, 2007, the 1 98th executive meeting of the State Council adopted a decision on amending the National Festival and Memorial Day, stipulating that "Tomb-Sweeping Day will have a holiday1day (the first day of the Lunar New Year is clear), and Tomb-Sweeping Day will officially become a legal holiday in 2008, with one day off.

As a festival, Tomb-Sweeping Day is different from pure solar terms. Solar terms are symbols of phenological changes and seasonal order in China, while festivals contain certain customs and activities, which have certain commemorative significance.