When will spring officially begin in 2020? The specific timetable of spring in major cities in 2020.

When will spring officially begin in 2020? The specific timetable of spring in major cities in 2020.

The earliest time to enter spring in 2020 is in mid-February, and the latest time to enter spring is after May. The specific time reference is as follows:

1, there is no winter all year round, and autumn and spring are connected: Fuzhou, Nanning, Guangzhou and Haikou, 4;

2. Spring in early May: Lhasa,1;

3. Spring in late April: Harbin, Changchun, Hohhot and Xining, 4;

4. Spring in mid-April: Shenyang, Urumqi, Yinchuan and Taiyuan, 4;

5. Spring in early April: 5 in Beijing, Tianjin, Shijiazhuang, Xi 'an and Lanzhou;

6. Spring in late March: 6 in Shanghai, Hangzhou, Hefei, Nanjing, Zhengzhou and Jinan;

Spring outing in mid-March: Guiyang, Nanchang, Changsha, Wuhan, 4;

8. Spring in early March: Chengdu,1;

Spring in mid-February: Chongqing, Kunming, 2.

Climatic characteristics in different areas of China in spring;

(1) The temperature changes greatly: People generally regard spring as the beginning of a year, and everything is revived and full of vitality. But spring is also the period when the weather changes the most in a year. The temperature is suddenly warm and cold, and the temperature changes suddenly. The temperature difference in a day is the largest in spring. Taking Beijing as an example, the difference between the highest temperature and the lowest temperature reached 26.8℃ on May 3rd, 1966. Therefore, in spring, we should listen to the weather forecast in time, pay attention to the weather changes and increase clothes in time.

(2) Dry and windy air: Spring is in the adjustment period of atmospheric circulation, with frequent cold and warm air activities. In addition to the great temperature change, dry air and windy weather are another feature. Spring is the transitional season between winter and summer, and the cold and warm air are equally strong, both of which are very active, so windy weather often occurs, especially in northern China, which is characterized by alternating north-south winds and strong winds. Generally speaking, the phenomenon of frequent north-south winds can be improved after May. The arrival of a windy weather brought cold air, the temperature dropped, and at the same time reduced the air humidity. It is easy to cause colds, rhinitis, arthritis, psychosis, skin diseases and other diseases.

(3) Dust weather in the north: In spring, with the increase of temperature, if there is less precipitation and the ground is dry some time ago, it is easy to have dust weather when strong winds come. Meteorology, sandstorm weather is divided into floating dust, sand blowing and sandstorm. In northern China, March and April are the frequent periods of dusty weather. The result of sandstorm weather is that the concentration of suspended particles in the atmosphere, especially inhalable particles harmful to human body, increases sharply, which leads to the decline of air quality. These suspended particles contain a variety of allergens, which are easy to induce allergic reactions in people with allergic constitution, thus causing allergic diseases such as allergic dermatitis, allergic rhinitis, asthma and urticaria. Allergies must stay away from these allergens and pay attention to personal preventive measures when going out.

(4) Rainy weather in the south: the cold weather in early spring or late autumn in China lasts for several days or even months without sunshine. Also known as low temperature and continuous rain. It is often rainy and rainy in southern spring, with low temperature and warm temperature appearing alternately. Humidity in rainy season is high, which is easy to cause rheumatoid arthritis. In addition, it also has a great influence on people's psychological diseases. Therefore, special attention should be paid to adapting to nature and climate change in spring.