1. Rain is a spring festival. Rain is the second of the 24 solar terms, and belongs to the spring solar terms together with Lichun, Hibiscus, Vernal Equinox, Qingming and Guyu.

2, after the rainy season, the sun's point of direct sunlight from the southern hemisphere gradually to the equator close to the northern hemisphere, the number of hours of sunshine and the intensity of sunshine are increasing, the temperature rebound faster, from the ocean's warm and humid air began to be active, and gradually to the north, the rainfall gradually increased, but the amount of rainfall level is mostly to the main light rain or drizzle. In Chinese climatology, the beginning of spring is often divided by the first day of every five days when the average daily temperature stabilizes above 10 degrees Celsius.

3, after the rainy season, the sun's point of direct sunlight from the southern hemisphere gradually to the equator close to the northern hemisphere at this time, the number of hours of sunshine and the intensity of sunshine are increasing, the temperature rebound faster, from the ocean's warm and humid air began to be active, and gradually to the north, the gradual increase in precipitation, but the amount of rainfall level more than a drizzle or a drizzle mainly. Chinese climatology, often to every five days of the average daily temperature stabilized at 10 ℃ above the beginning of the day divided into the beginning of spring.