What day is Tomb-Sweeping Day? Lunar calendar?

This year's Tomb-Sweeping Day falls on April 4th in the solar calendar and February 28th in the lunar calendar.

A drizzling rain falls like tears on the Mourning Day.

One of the 24 solar terms. On April 4th or 5th and 6th every year, folk customs sweep graves on this day. Qingming is a solar term representing phenology, which means sunny weather and lush vegetation. Tomb-Sweeping Day has folk customs such as climbing mountains, eating cold food and sweeping graves.

In ancient China, Qingming was divided into three stages: the first stage, the beginning of flowers; Second, voles become owls and peonies blossom; This sound is like the yin sound made by quail and mouse. When yang is strong, mice become owls, while when yin is strong, owls become mice. Wait three times and the rainbow will see you. Rainbow, sound flood, yin and yang meet, pure yin and yang are not in phase. If the clouds are thin and the sun is leaking, rain shadows can be seen in the rainbow.

As the saying goes, "Qingming breaks snow, Grain Rain breaks frost." When the weather is clear, the climate in South China is warm and the spring is strong. However, before and after Tomb-Sweeping Day, cold air still invaded from time to time, even making the average daily temperature lower than 12℃ for more than three consecutive days, resulting in rotten seedlings of middle rice and dead seedlings of early rice. Therefore, it is necessary to avoid warm tail and cold head when sowing and transplanting rice. In the northwest plateau, livestock are weak under the influence of severe winter and insufficient forage, so it is necessary to guard against the harm of strong cooling weather after spring to old, weak and young livestock.

"There are many rains during the Qingming Festival" is a portrayal of the spring rain in the south of the Yangtze River by Du Mu, a famous poet in the Tang Dynasty. But in some areas, this is not the case. Especially in the western part of South China, it is often in the spring drought period, and the rainfall in early April is generally only 10 to 20 mm, which is less than half of that in the south of the Yangtze River. Although there are many spring rains in eastern South China, the rainfall in early April is generally only 20 to 40 mm, so natural precipitation is not enough for agricultural production, so it must be replenished by storing water years ago. In addition, May-June is the month with the most hail in a year, so the prevention of hail disaster should be strengthened.

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