What are the characteristics of cold dew solar terms?

1. The main feature of the cold dew solar term is that the temperature drops gradually. In the cold dew season, Nanling and its vast areas to the north have entered autumn, the northeast has entered late autumn, and the northwest has entered winter or is about to enter winter.

2. 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. At night, looking up at the starry sky, you will find that the season of the starry sky changes, and the "Big Mars" (Scorpio Antares), which represents the midsummer, has set in the west. We can vaguely hear the footsteps in winter.

At this time, the temperature in most parts of South China continues to drop. The average daily temperature in South China is less than 20℃. Even in the areas along the Yangtze River, it is difficult for the temperature to rise above 30℃, while the minimum temperature can drop below 10℃. Except for a few valley lowlands, the five-day average temperature in the northwest plateau is generally lower than 10℃, which is already winter according to the standard of four seasons climate division. First frost store, a thousand miles away, is quite different from the autumn scenery in South China.