How is the weather in Beijing formed?

Beijing's climate is a typical northern temperate semi-humid continental monsoon climate, which is characterized by:

1, hot and rainy in summer, cold and dry in winter and short in spring and autumn.

2. The frost-free period of the whole year is 180 ~ 200 days, which is shorter in western mountainous areas.

3. The seasonal distribution of precipitation is uneven. 80% of the annual precipitation is concentrated in June, July and August in summer, and there are heavy rains in July and August.

4. The annual average sunshine hours are between 2000 and 2800 hours. The maximum value is over 2800 hours in Yanqing County and Gubeikou, and the minimum value is distributed in Xiayunling and Rizhao for 2063 hours.

Extended data

Reason:

The cause of formation is mainly influenced by the difference of thermal properties between land and sea.

Winter is controlled by temperate continental air mass, which is cold and dry with large temperature difference between north and south; In summer, it is warm, hot and rainy, and the temperature difference between north and south is small due to the influence of temperate marine air mass or denatured tropical marine air mass. It is cold and rainy in winter and warm and rainy in summer.

In winter, influenced by the strong Siberian continental cold high, winter winds prevail, the wind is strong, the weather is sunny and cold, and there is little rain and snow. The average temperature in Leng Yue varies greatly from north to south, below 0℃ in the south and below -20℃ in the north, and the average latitude decline rate is 2℃/ latitude distance.

In summer, influenced by the Pacific subtropical high, the summer monsoon prevails, mainly southeast wind, with less wind; It is wet and rainy, and the precipitation from June to August accounts for more than 70% of the annual precipitation. The average temperature in the hottest month in the south can reach above 26℃, but it decreases to the north, not lower than 20℃. The average latitude decline rate is only 0.4℃/ latitude distance.

Natural vegetation is deciduous broad-leaved forest and mixed coniferous and broad-leaved forest.

Baidu Encyclopedia-Beijing

Baidu encyclopedia-temperate monsoon climate