Tips for the Twenty-four Solar Terms: Which season does Grain Rain belong to?

Grain Rain, one of the 24 solar terms, is also the last solar term in spring. After the solar term in Grain Rain, rainfall increased, and rain gave birth to hundreds of valleys. With sufficient and timely rainfall, cereal crops thrive. Every April 20th or 2 1 day, when the sun reaches 30 degrees of the yellow meridian, it is Grain Rain.

The origin of solar terms in Grain Rain

Grain Rain is the last solar term in spring. At this time, just after planting seedlings and planting new crops in the field, rain is most needed, so there is a saying that "spring rain is as expensive as oil". At this time, the eastern part of most parts of South China is abundant with rainfall of about 30 to 50 mm in late April of the year. The first heavy rain usually occurs during this period, which is beneficial to rice planting and the growth of corn and cotton at seedling stage. As the saying goes, "Rain gives birth to a hundred valleys". With sufficient and timely rainfall, cereal crops can thrive. Grain Rain solar terms have such a meaning.

Climatic characteristics

After the solar term in Grain Rain, rainfall increased, and rain gave birth to hundreds of valleys. With sufficient and timely rainfall, cereal crops thrive. In southern Grain Rain, the temperature rises rapidly. Generally, the average temperature in late April has reached 20℃ to 22℃, which is more than 2℃ higher than that in mid-April, except in northern and western South China. High temperatures above 30℃ often occur in eastern South China for a day or two, which makes people feel very hot.