Illustration of cold dew

Cold dew means that the temperature at this time is lower than the "white dew" when the dew on the ground is colder, about to condense into frost. "The seventy-two seasons of the month," "September Festival, the dew is cold, will also congeal." Cold dew solar term is a symbol of cooler weather, marking the weather from cool to cold transition, dewdrops of cold light, as the saying goes, "cold dew, cold dew everywhere."