How do we traditionally divide the four seasons in China?

Beginning of spring (around February 4th), Changxia (around June 5th), beginning of autumn (around August 8th) and beginning of winter (165438+1around October 8th) are four seasons.

It is very regular that the seasons of sending winter to welcome the spring, late spring to summer solstice, summer returning to autumn and autumn coming to winter alternate year after year. But do you know how the four seasons are divided? From ancient times to the present, there are various standards for the division of this problem. For example, in astronomy, the vernal equinox, summer solstice, autumn equinox and winter solstice are the beginning of the four seasons; Beginning of spring, Changxia, beginning of autumn and beginning of winter are often used as the beginning of the four seasons in China ancient books. Folk customs take the first month of the lunar calendar to March as spring, April to June as summer, July to September as autumn and October to December as winter. Meteorologically, March-May is often spring, June-August is summer, September-165438+1October is autumn, and February-February is winter.

In fact, due to China's vast territory, complex terrain and different climate, when the southern provinces are full of colorful spring scenery, the northern provinces are still covered with snow and ice. Therefore, using the above method to divide the four seasons can not accurately reflect the actual situation in various places. Therefore, in China's climatology, the average climate temperature (five days, ten days for two seasons) is usually used to divide the four seasons, that is, the average climate temperature is higher than 22 degrees in long summer, and lower than 10 degrees in beginning of winter, somewhere in between, and the weather is neither too hot nor too cold in spring and autumn.

Source address:/static/html/knowledge/20080704/2877.shtml.

/question/215997950.html This is very careful.