What's the change in winter weather from solstice to solstice?

In winter, the solstice temperature is low and the climate is cold. Climatically, during the winter solstice, 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.

From winter to around, although the northern hemisphere has the shortest sunshine time and receives the least amount of solar radiation, the accumulated heat on the ground in summer can also provide some supplement, so the temperature is not the lowest at this time. "After eating the winter solstice dinner, the days get longer." After the winter solstice, the days get longer and longer. However, the solar radiation obtained on the ground is still less than the heat lost by the ground radiation, so the temperature will continue to drop in the short term. In China, except for a few islands and coastal areas, 1 is the coldest month, so there is a folk saying that winter solstice is not too cold, and astronomy also stipulates that winter solstice is the beginning of winter in the northern hemisphere.