202 1 introduction to the origin of rainwater solar terms; The origin of rain solar terms in the Year of the Ox.

1, the origin of rain solar terms is also very long, and rain is the second solar term among the 24 solar terms. Every February 19 or so, when the sun meridian reaches 330 degrees. Rain is the rain of 24 solar terms. At this time, the temperature rises, the snow melts and the precipitation increases, hence the name rain. The rain solar term generally starts from February 18 or 19 and ends on March 4 or 5. Rain, like Grain Rain, light snow and heavy snow, is a solar term reflecting precipitation.

2. On February18th every year in Gregorian calendar, it is a rainy solar term, when the sun reaches 330 degrees. Rain has two meanings. First, the weather is getting warmer and the precipitation is gradually increasing. Second, in the form of precipitation, there is less snow and more rain. The twenty-four solar terms say, "In the first month, water is born every day. Spring belongs to wood, but there must be water for those who grow wood, so there is rain in beginning of spring. If the east wind melts, it will disperse into rain. " In rainy season, wheat enters the stage of turning green, and at this time, wheat has higher requirements for water.