Is cold dew better, sunny or rainy?

The solar terms are better in sunny days and cold dew.

If it rains in the cold and dew season, there will be less rain (snow) in winter. On the contrary, if the weather is sunny in the cold and dew solar terms, there will be more rain (snow) in winter. There are more rainy (snowy) days in winter, which is beneficial to the growth of crops such as winter wheat and rape. Therefore, farmers don't expect it to rain in the cold dew solar terms, because it indicates that there is less rain in winter and the harvest in the coming year will be affected to some extent.

Cold dew is the seventeenth solar term among the twenty-four solar terms and the fifth solar term in autumn. Fight with each other; Longitude of solar arrival195; Gregorian calendar1October 7 -9 10 every year. Cold dew is a festival in late autumn and the beginning of the full moon in the dry calendar.

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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.

The above contents refer to Baidu Encyclopedia-Cold Dew.