Cold dew, the seventeenth of the twenty-four solar terms, belongs to the fifth solar term in autumn, indicating the official end of the autumn season. Finger e; The sun reaches the yellow meridian195; It is celebrated on the 7th to 9th of October in Gregorian calendar1every year.
From the climate characteristics, during the cold dew season, the vast areas in the north have entered autumn, the northeast has entered late autumn, and some areas in the northwest have entered or are about to enter winter. Autumn is getting stronger in the south.
"twenty-four solar term" said: "In September, the dew is cold and will condense." Cold dew means that the temperature is lower than when it is white dew, and the dew on the ground is colder, which is about to condense into frost.
The temperature drops gradually. The three solar terms, White Dew, Cold Dew and first frost, all indicate the phenomenon of water vapor condensation, and the cold dew is the transition from cool to cold.