The weather in Beijing changes all the year round.

From the temperature point of view, there are three zones where the annual average temperature in Beijing exceeds 12 degrees Celsius, from the east to the south of Haidian to the junction of Fengtai, Daxing and Fangshan; From the middle of Haidian through the east of Shijingshan to the northeast of Fangshan; South foot of Fangshan. June+10 in 5438, which is the most Leng Yue in Beijing. The coldest areas in June 5438+ 10 are Haituo Mountain in Yanqing County and Dongling Mountain in Mentougou District, with the lowest average temperature reaching-17 degrees Celsius, and the hottest areas are above -4 degrees Celsius, which are distributed in the area from the middle of Haidian to the front of Zhangfangshan in Fangshan District.

July is the hottest month in Beijing in a year. The average maximum temperature in Beijing Plain is above 365,438+0 degrees Celsius in three areas: the junction of Changping and Haidian, the middle of Fangshan Plain and the south-central Huairou. The lowest temperature is Haituo Mountain in Yanqing County, with a monthly average temperature of 13.4 degrees Celsius. The areas with the biggest temperature change in one day are Yanqing Sichuan, Chaobai River Basin and Qingshui River Basin in Mentougou. The daily temperature difference can reach 16 degrees Celsius.

In terms of precipitation, the place with the largest annual precipitation in Beijing is on the windward slope of the southeast mountain area of Pinggu, with the precipitation reaching1000 mm; The Guanting Reservoir with the least precipitation has an annual precipitation of 400 mm. ..

Beijing can be divided into three areas: rainy, moderate and rainy. Rainfall in rainy areas is more than 700 mm, including Pinggu, eastern mountainous area of Miyun, Nanshan Mountain of Pinggu and windward slope of Sidong Building. In many areas, the precipitation reaches more than 900 mm; With the Badaohe River in Huairou, Yunmeng Mountain and Miyun Shicheng as the center, the precipitation is about 800 mm; East of Mentougou, Xishan of Haidian, southwest of Fangshan and west of Juma River. The annual precipitation in the less rainy area is below 550 mm, including two areas: starting from Qijiazhuang in Mentougou in the west and extending to Yanqing, Kangzhuang, Baihebao and the west of the flowerpot line in the northeast; On both sides of Tanghe River in Huairou District.