What is the role of autumn rain?

The role of autumn rain: Autumn rain is a precursor to a bumper harvest. It will water mature crops for the last time, so that farmers can get a bumper harvest.

In autumn, there is more dust because of the dry weather in the city. Autumn rain can wash the city, purify the air and make people feel cool. ? Autumn, autumn wind rustling, falling leaves in succession. Every time I read the poems of the ancients, I am always wrapped in a deep sadness about autumn, but I don't want to break free and sip the slowly expanding melancholy and loss alone.

Extended data:

Source of autumn rain: In the transitional season of summer and autumn in eastern China, autumn rain is more obvious. In this season, typhoons often land in the east of China and turn northward or offshore, resulting in the intersection of warm and humid air from typhoons and cold air from the north, resulting in continuous rainy weather. Sometimes, although there is no typhoon, the strength of warm and humid air will occasionally increase. For example, encountering cold air in the north will also cause a rainy weather, which is more common in West China.

References:

Baidu encyclopedia-autumn rain