How cold is the weather in winter?
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What's the weather like in winter? There is a folk saying that it is not cold but the solstice in winter. After the winter solstice, it is generally the coldest period of the year in China. During the winter solstice, the average daily temperature in China from Jianghuai to the north of Daba Mountain has dropped below 0℃, entering the coldest season of the year. As the saying goes, "it takes nine days from cold to summer" is this period. People count nine from the solstice in winter, and every nine days is a nine. Before and after "March 9th", the area was the least hot and the weather was the coldest, so it was said that "March 9th was cold". Astronomy regards the winter solstice as the beginning of winter, which is obviously late for most parts of China. During the winter solstice, the average temperature in the western Sichuan Plateau is generally below 0℃, while the average temperature in the Sichuan Basin is only about 6℃ to 8℃. In the low-altitude valley area of southwest Sichuan, even in the coldest local165438+ in early October, the average temperature is still above 10℃, so it can be said that autumn comes and spring comes, and there is no winter all year round.
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After the winter solstice of 10 day, the average temperature in the northwest plateau is generally below 0℃, and it is only about 6℃ to 8℃ in the south. In addition, the winter solstice begins to count to nine, and the winter solstice becomes the first day to count to nine. As for "Counting Nine", there is a folk song that goes like this: "Don't do it in September, walk on the ice in March and April, watch the willows along the river in May and June, open the river in July and September, geese come in August and September, and cows go everywhere in September and September." However, in the southwest low-altitude valley area, even in the coldest local165438+ in early October, the average temperature is still above 10℃. It can be said that autumn goes and spring comes, and there is no winter all year round.
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Climatic characteristics of winter solstice: during the snowstorm and low temperature winter solstice, the sunshine time in the daytime is the shortest in a year, so it can be considered that the earth can absorb and release very little heat, and the overall temperature and body feel are reduced due to the lack of heating source. After the winter solstice, although the sunshine time will gradually become longer, the speed is really slow, and this heat is far from enough to keep warm. It is already very cold without enough heat source supply, and with the continuous invasion of Siberian cold air, it is difficult to keep the temperature low in both cases. Under the continuous low temperature, there was heavy snowfall. Judging from the winter solstice temperature, the winter solstice temperature in higher places in the north and northwest is generally below zero, and the average temperature in the northeast should be around MINUS 7 degrees; The average temperature from Jianghuai to the north of Daba Mountain is also below zero. However, the average temperature in most parts of the south is about 7 degrees, and the temperature in some high-altitude areas is generally low, while the temperature in the valley is high, and the temperature in the valley south of western Sichuan is above 10 degrees from winter to Sunday. There is also a "winter-free zone" in South China, especially in Hainan. The lowest average temperature in winter is around 20 degrees. Even if there is a high temperature of more than ten degrees, it will not last for three days, and it will pick up again soon.
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