What's the weather like in Guiyang recently

Spring is the first season in a year, and there are many ways to divide the four seasons: one is astronomical division. From the astronomical phenomenon, the change of four seasons is the seasonal change of the length of day and night and the height of the sun. The second method is meteorological division, which usually takes March-May as spring, June-August as summer, September-165438+10 as autumn and 65438+2-2 as winter. The third is the ancient division method, with beginning of spring (February 4th or 5th) as beginning of spring, Changxia (May 5th or 6th) as long summer, beginning of autumn (August 7th or 8th) as beginning of autumn and beginning of winter (165438+1October 8th or 9th) as beginning of winter. Fourth, the division method of the lunar calendar. According to China folklore,1~ March is spring, April-June is summer, July-September is autumn, and 10 ~ 12 is winter. Five, the waiting temperature division method, with the five-day average temperature as the temperature index to divide the four seasons. Summer begins when the average temperature is stable above 22℃, winter begins when the average temperature is stable below 10℃, and spring and autumn begins when the average temperature is between 10 ~ 22℃. 10℃ to 22℃ is spring, and 22℃ to 10℃ is autumn.

In addition to the continuous low temperature, the rainy days in Guiyang this year have also become the protagonist. Why is it so cold in early spring It is mainly the result of frequent cold air in the north, weak subtropical high in the east and relatively weak convection in the south. "The cooling and rainfall periods in March are from March 2 to 5, 9 to 1 1, 2 1 to 26, and 28 to 29, and the highest temperature dropped by 20.3 degrees Celsius from 2 1 to 26. It is expected that it will be rainy and rainy repeatedly this week.