What is the date of early winter?

Beginning of winter is an annual Gregorian calendar165438+1October 7-8.

Beginning of winter is the 19th of the 24 solar terms and the beginning of winter. Bucket handle points to the northwest, and the longitude of the sun reaches 225, which intersects with Gregorian calendar165438+1October 7-8 every year. Stand, rise, winter, end, and everything will be harvested. Beginning of winter means that anger begins to close and everything enters a state of recuperation. Its climate has also changed from dry autumn to rainy and cold winter.

The commonly used methods of season division mainly include "solar terms method" and "temperature method". Traditionally, China begins its winter with "beginning of winter" in "24 solar terms". The winter divided by solar terms means that everything enters a state of recuperation. According to the "temperature method", winter begins when the average temperature of the day falls steadily below 10℃ for five consecutive days. Winter divided by temperature means cold weather.

Agricultural activities in early winter

China was an agricultural country in ancient times, and beginning of winter, like other solar terms in the twenty-four solar terms, reflected climate change and corresponding phenology, which has practical guiding significance for agricultural production. In southern China, the beginning of winter is a good time for autumn harvest and winter planting. All localities should make full use of fine weather to harvest, dry and dry late rice to ensure the storage quality. After beginning of winter, the northern agricultural and forestry crops entered the wintering period in an all-round way, and the "Sanqiu" (autumn harvest, autumn management and autumn planting) in Jianghuai area came to an end.

Beginning of winter solar terms and high-altitude westerly jet have been fully established in South Asia. At this time, the fluctuation intensity and eastward movement of the south branch of the high-altitude westerly wind. When the zonal circulation in Asia and the fluctuation of the south branch of the westerly wind are strong, there will be a wide range of rainy weather. In addition, the zonal circulation will end, the meridional circulation will be established, and there will be a cold wave and significant cooling. Farming activities cool down and prevent cold.

The above contents refer to Baidu Encyclopedia-beginning of winter.