What does the solar term rain of 202 1 mean? 202 1 introduction of solar term rain.

1, the rain solar term means the melting of ice and snow, and rain is the second of the 24 solar terms. It is the rain in the twenty-four solar terms when the longitude of the sun reaches 330 degrees on the fifteenth day of the first month of each year (February in the solar calendar 18-20). At this time, the temperature rises, the snow melts and the precipitation increases, hence the name rain.

2. Rainwater solar terms generally start on February 18 or 19 of Gregorian calendar and end on March 4 or 5. Rain, like Grain Rain, light snow and heavy snow, is a solar term reflecting precipitation. Twenty-four solar terms: "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. " It means that everything begins to sprout before and after the rain and solar terms, and spring is coming. For example, Yizhoushu has phenological records such as "Hongyan coming" and "vegetation sprouting" after the rain. After the rain, it was a shock.