When is the solar term meaning of cold dew?

1, cold dew indicates the official start of autumn season. In the cold dew season, the temperature is low, the dew increases, and the climate gradually changes from cool to cold and snowy, which is very beneficial to the autumn harvest. At this time, the north is in the busy season of corn harvest and planting winter wheat. But for the south, the decrease of rainfall during the cold dew period will affect the growth of crops.

2. When is the cold dew? Cold dew is the seventeenth solar term in the twenty-four solar terms of the lunar calendar and belongs to the fifth solar term in autumn. Every year1October 8 or 9, when the sun reaches longitude 195, it is cold dew. Cold dew means that the temperature is lower than that of the white dew, and the dew on the ground is colder and will soon condense into frost. White dew, cold dew and first frost all indicate the phenomenon of water vapor condensation, and cold dew is the transition from cold to cold.