Which is colder, beginning of winter or beginning of spring?

Beginning of winter, beginning of spring and beginning of spring are even colder.

According to the story of solar terms, the symbol of beginning of winter is "water begins to freeze", and the symbol of beginning of spring is "east wind thaws", with the change of water phase as the dividing line between winter and spring. In modern times, only thawing is not considered as spring, and the average daily temperature in spring needs to be kept above 10℃. In Beijing, the hottest is early autumn, followed by long summer, then beginning of winter, and the coldest is beginning of spring. Beginning of spring is even colder than beginning of winter, which makes beginning of spring feel sorry!

However, beginning of spring is a solar term in which the national average temperature turns positive. The temperature in beginning of spring is only 0.77℃ higher than that in severe cold days, but 2.6℃ higher than that in severe cold days in beginning of spring, making it the first "clear line" of the annual temperature. Then, the recovery slows down in the rainy season, accelerates in the scare season and slows down again in the vernal equinox season. During the Qingming period, the heating rate reached the peak of the whole spring.

Climate change in early spring.

In early spring, westerly jet, the southern branch of East Asia, began to weaken, while the strength and location of westerly jet, the northern branch of East Asia, remained basically unchanged. The Mongolian cold high and Aleutian low are still relatively strong, but during the intermittent period affected by strong cold air, the frequency of southerly wind increases, accompanied by an obvious warming process.

Since the solar terms in beginning of spring, the time series has entered the spring. In nature and people's minds, "spring" means warm weather and the revival of everything. Spring has begun. In nature, the most striking feature is that everything is beginning to show signs of recovery. ?

The dividing line between winter and spring in beginning of spring and China (when the average temperature reaches 65,438+00 degrees Celsius for five consecutive days, it is regarded as spring), from Guilin, Guangxi to Ganzhou, Jiangxi. In the area south of this line, beginning of spring sometimes smells of spring, but 93% of the land in China is still in winter, while in Heilongjiang, it often welcomes spring in the long summer, Grain Rain. The so-called beginning of spring is just a "conception". In spring, the temperature began to rise, and sunshine and rainfall began to increase. But for most parts of the country, this is just a prelude to spring.