What will the weather be like in Tomb-Sweeping Day?

Generally, in Tomb-Sweeping Day, there will be a wave of late spring cold. After the late spring cold, the weather will start to pick up.

Long-term rainy weather or frequent cold air intrusion, or under the control of continuous cold and high pressure, strong radiation cooling in sunny nights is easy to cause late spring cold. In early spring, the climate is changeable. If the cold air is strong, the temperature can drop to below 10℃, even in rainy and snowy weather.

At this time, it is often sunny during the day, which makes people feel that the warm wind makes tourists intoxicated, but it is chilly in the morning and evening, which makes people feel "chilly in spring". This unpredictable "fickle" weather is what is usually called the cold in spring.

During the Qingming Festival, the temperature gets warmer, plants sprout, the weather is fine and everything is thriving. Dry farming in the north and early and middle rice in the south of the Yangtze River have entered a suitable season for mass sowing. People rolled up their sleeves and trouser legs one after another, and it was sunny to sow in the fields and sow early. North and south of the great river, inside and outside the Great Wall, there are busy scenes of spring ploughing everywhere.

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, rice planting and transplanting should avoid cold tail and warm head. In the northwest plateau, livestock are weak under the influence of severe winter and insufficient forage. At this time, it is necessary to guard against the harm of strong cooling weather to old, weak and young animals after spring.