The cold dew is the fifth solar term in autumn. During this solar term, people can obviously feel the change of temperature difference.

  The crystal dew is cold and wants to condense, which reflects the continuous drop of the temperature. As the temperature in the north drops, the geese move southward in a queue, and the chrysanthemums gradually open. At the same time, the cold air force of cold dew becomes stronger, the temperature difference between day and night is larger, and autumn dryness is obvious.

  When the cold dew comes, the weather is changeable, so keep warm.