Solar Term Climate: Will it rain in Grain Rain?

During the Grain Rain solar term, the westerly jet in East Asia will weaken and move northward again, the warm and humid air mass in South China will become more active, the circulation fluctuation in the westerly belt from west to east will become more frequent, and the activities of low pressure and Jianghuai cyclone will gradually increase. Affected by it, there will be continuous rain or heavy wind and rain in the Jianghuai area.

Grain Rain is the last solar term in spring. It is the season when the seedlings planted in Tanaka and the new crop "melons and beans planted before and after Grain Rain" need rain most, so it is said that "spring rain is as expensive as oil".