Traditional Culture Encyclopedia - The 24 Solar Terms - When is the cold dew in 2023?
When is the cold dew in 2023?
Cold dew is a festival in late autumn and the beginning of the full moon in the dry calendar. Cold dew is a solar term reflecting the characteristics of climate change. When entering the cold dew, there is cold air going south, the temperature difference between day and night is large, and autumn dryness is obvious.
Cold dew is a solar term reflecting the characteristics of climate change. After the cold dew solar terms, the days become shorter, the nights become longer, the sunshine decreases, the hot air slowly recedes, the cold gradually increases, the temperature difference between day and night is larger, and it feels a little chilly in the morning and evening. After the cold dew, the cold air in the north has a certain influence, and most parts of China are controlled by cold high pressure, and the rainy season is over.
Wan Li is clear, warm during the day and cool at night. Thunderstorms have disappeared in most parts of Chinese mainland. From the climate characteristics, in the cold dew season, the autumn in the south is getting stronger, cool and cool, with little rain and dryness; The northeast and northwest regions in the north show a scene of winter, with thousands of miles of frost and snow in Wan Li, which is quite different from the autumn colors in the south.
rural activity
After the cold dew, if there is strong cold air going south, the cold dew wind weather with low temperature and strong wind is easy to appear in the south. Cold dew wind is a chilling injury caused by the invasion of cold air in autumn, which reduces rice production. It is one of the main meteorological disasters in the growth period of late rice in southern China, which mostly occurs around the cold dew festival in the southern lunar calendar. Therefore, Guangdong, Guangxi and Fujian are called cold dew wind, and the Yangtze River basin is called autumn low temperature.
In the cold dew season, wheat should be sown in the north, not late, so as not to reduce production. South China should sow rape and plant broad beans in due course. There will be a disastrous weather in South China-Mianyu, which is characterized by high humidity, more clouds, less sunshine and more cloudy days. After that, the number of foggy days will increase obviously, which will directly affect the progress and quality of Sanqiu. Therefore, it is necessary to use the weather forecast to harvest and sow in sunny days.
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