From the meteorological and climatic point of view, March 9 is the coldest season in winter, and it should not rain generally. From a scientific point of view, it rained on March 9, mainly because the cold air force from Siberia was weak and the warm and humid airflow in the south was strong. If the force of cold air is slightly strengthened, abundant rain will form snowfall.

Rain on March 9 means rainy weather. Here, "rain is coming" refers to the rainy weather on March 9, which indicates the dog days of the coming year. There is no shortage of water in dog days. The dog days here refer to the third dog days, also called the last dog days, which usually come in mid-August and last for ten days. At this time, we have reached the early autumn. This kind of "water shortage" shows that rainy days bring abundant rain, which is beneficial to crop growth.

thermal insulation

Health experts suggest that you should pay attention to keeping your head and neck warm after entering the March 9th. When going out in bad weather such as rain and strong wind, it is recommended to wear a hat and scarf to prevent the head and neck from catching cold. It is best not to wash your hair at night. After washing your hair, be sure to dry it with a dry towel or blow dry it with a hair dryer. The waist and back is the main part of the human body to collect yang in nature, and the seven most important meridians for the human body to manage and transport yang meet at the waist and back. Therefore, the best measure to keep your back warm is to bask in the sun often.

From the perspective of disease prevention, the navel must not be cold, because it is particularly sensitive to external stimuli and vulnerable to cold pathogens. Rest at home in winter, and wear a vest to keep warm when there are not many clothes. Babies had better wear jumpsuits to protect their navel from catching cold.