Cold dew, the seventeenth of the twenty-four solar terms, belongs to the fifth solar term in autumn, which indicates the official end of the autumn season. Finger e; Longitude of solar arrival195; Celebrate every year from July 7th to 9th in Gregorian calendar 10 year 10.
According to the climatic characteristics, in the cold dew season, autumn has entered the vast area in the north, late autumn in the northeast and winter in some areas in the northwest. Autumn is getting stronger in the south.
"Twenty-four solar terms" said: "In September, the dew is cold and will condense." 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.
The temperature drops gradually. 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.