Why is it so warm in summer in Northeast China and so different in winter in Huainan?

Because of the angle of sunlight, the climate is bounded by Huaihe River. Huaibei area belongs to warm temperate and semi-warm monsoon climate, while Huainan area belongs to subtropical humid monsoon climate. The annual average temperature is 14 to 17℃, and 1 month is-1 to -4℃. The 0℃ isowetting line is basically similar to the Huaihe River flow. The average temperature in July is between 27℃ and 29℃, with an extreme maximum temperature of 43.3℃ (Huoshan, August 9 1996) and a minimum temperature of -24. 1℃ (Shouxian, 1955 1 day). The average annual precipitation in Huaibei area is 700-800 mm, and 800- 1700 mm in Huaibei area. Rainfall centers are concentrated in Dabie Mountain and Huangshan Mountain. The rainfall in Huangshan Mountain is over 000 mm, and the maximum daily precipitation in the province is 287.7 mm. Rainfall centers are concentrated in Dabie Mountain and Huangshan Mountain, and the rainfall in the central part of Huangshan Mountain is as high as 000 mm, and the maximum daily precipitation in the province is 287. 7mm (1969 July 14 Huoshan).

Located in the north temperate zone, it belongs to the monsoon climate between the northern continental climate and the humid climate, with mild climate, abundant sunshine and distinct four seasons. Spring and autumn are obviously shorter than winter and summer, winter is cold and dry, summer is hot and rainy, and the annual average temperature is 14.8 degrees Celsius. The dominant wind direction throughout the year is southeast wind in summer and northeast wind in winter. The annual average frost-free period is 203 days, the annual average precipitation is 830mm, the annual average relative humidity is 7 1%, and the sunshine hours are 23 15.8 hours.

The climate of Jiangxi province

Jiangxi is located in the north of Nanling and the south of the Yangtze River, with low latitude and not far from the ocean. The weather in spring is changeable. At the turn of spring and summer, cold and warm air flows meet in the territory, and the plum rains are continuous. Summer is mostly controlled by subtropical high, and the south wind prevails; The air flow in summer and autumn is single, sunny, hot and dry; Winter is often affected by Siberian (or Mongolian) cold high pressure, prevailing northerly wind, cold and low temperature, but the frost period is short. Jiangxi has a subtropical humid monsoon climate, with an average annual temperature of 16 ~ 20℃, which is generally high in the south and low in the north. The average annual precipitation in 1 month and July is1341.4 ~1934.4mm.

In a word, the climate in Jiangxi Province is characterized by cold spring and hot summer, dry autumn and cold winter, with four distinct seasons, but short spring and autumn and long summer and winter. The whole province has a warm climate, abundant rainfall, abundant sunshine and long frost-free period, which belongs to subtropical humid climate and is suitable for the growth of various crops.