Spring climate characteristics: the four seasons of the year is a cycle, warm, hot, cool and cold, and the cycle begins again and again. Spring is the season when everything grows, the weather becomes warmer, the days get longer and the nights get shorter. People generally regard spring as the beginning of the year, when everything is new and vibrant, but it is also the period of the year when the weather changes the most, when the temperature is warm at first but cold at last, and when it changes suddenly. The temperature varies the most throughout the day in spring. Therefore, you should listen to the weather forecast in spring, pay attention to weather changes, and increase your clothing at the right time. Spring is a period of atmospheric circulation adjustment, with frequent cold and warm air activity. In addition to large temperature changes, dry air and more windy weather is another feature. Generally speaking, after May, the phenomenon of frequent north-south gales to improve. The arrival of a windy weather brings cold air and drops the temperature, while lowering the air humidity. It tends to cause colds, rhinitis, arthritis, mental illness, skin diseases and other conditions. In spring, as the temperature picks up, if the precipitation is low some time ago and the ground is dry, when the gale comes, it is very easy to have dusty weather. In the northern part of China, March and April each year is still the most frequent period of sand and dust weather. Dusty weather occurs as a result of a sharp increase in a variety of suspended particles in the atmosphere, especially the concentration of respirable particles harmful to humans also rose sharply, resulting in a decline in air quality. There are many allergenic substances in these suspended particles, which can easily induce allergic reactions in people with allergies, thus causing allergic dermatitis, allergic rhinitis, asthma and allergic diseases such as urticaria. Allergic people must stay away from these allergens and take personal precautions when they go out. In the south, spring is often cloudy and rainy, with alternating low temperatures and warm temperatures, and rainy seasons, with greater humidity, which can easily cause rheumatoid arthritis, in addition to the great impact on people’s mental illness, so spring should pay special attention to natural adaptation to climate change.