165438+1October 1 1 Weather in northern Shaanxi

Shaanxi has a continental monsoon climate, stretching more than 800 kilometers from north to south, spanning multiple latitudes, resulting in obvious differences between the north and the south. The north along the Great Wall has a temperate arid and semi-arid climate, the rest of northern Shaanxi and Guanzhong Plain have a warm temperate semi-arid or semi-humid climate, the southern Shaanxi basin has a north subtropical humid climate, and most mountainous areas have a warm temperate humid climate.

The temperature distribution in Shaanxi basically decreases gradually from south to north, with the annual average temperature of 7 ~ 16℃. The temperature in northern Shaanxi is 7 ~11℃; Guanzhong11~13℃; Shallow ravines in southern Shaanxi are the warmest areas in the province, mostly at 14 ~ 15℃. Affected by the monsoon, Leng Xia is hot in winter and has four distinct seasons. 65438+1October, the average temperature in Leng Yue is-10 ~-4℃-4℃ in northern Shaanxi, -3 ~ 1℃ in Guanzhong and 0 ~ 3℃ in southern Shaanxi. The average temperature of the hottest month in July is 2 1 ~ 25℃ in northern Shaanxi, 23 ~ 27℃ in Guanzhong and 24 ~ 27.5℃ in southern Shaanxi. The temperature rises and falls rapidly in spring and autumn, but the temperature difference between north and south is small in summer and large in winter.

The distribution of annual precipitation is more in the south and less in the north, decreasing from south to north, which is significantly influenced by mountainous terrain. The annual precipitation is 400 ~ 600 mm in northern Shaanxi, 500 ~ 700 mm in Guanzhong and 700 ~ 900 mm in southern Shaanxi, among which the annual precipitation in the central and western mountainous areas such as Micang Mountain, Daba Mountain and Qinling Mountain in southern Shaanxi is as high as 900 ~ 1250 mm. The seasonal variation of precipitation in different parts of Shaanxi Province is obvious, with the highest precipitation in summer, accounting for 39% ~ 64% of the whole year, and the highest precipitation in summer is in northern Shaanxi. Autumn is the second, accounting for 20% ~ 34% of the whole year. Spring is less than autumn, and the precipitation in spring accounts for 13% ~ 24% of the whole year. Winter precipitation is scarce, accounting for only 1% ~ 4% of the whole year. The rainstorm started in April and ended in June 5438+065438+ 10, mainly in July and August. The first 20.0 mm precipitation process in Guanzhong and southern Shaanxi in spring generally occurs from the end of early April to the middle of April. The rainstorm in early summer occurred from late June to early July. During this period, the rainstorm was relatively concentrated, and there were many floods in Guanzhong and southern Shaanxi. In autumn, there is a relatively rainy period in Guanzhong and southern Shaanxi of our province, which is called autumn shower, and generally appears from the end of early September to the beginning of mid-September.