Ji'an
Ji'an () is a prefecture-level city situated in the central region of Jiangxi province of the People's Republic of China while bordering Hunan province to the west. It has an area of and as of the 2020 census, had a population of 4,469,176, of whom 643,399 live in the built-up ("or metro") area made of 2 urban districts. Ji'an lies next to the Luoxiao Mountains () with the Gan River running through the middle of the city. Local dialects include a form of Gan Chinese (Jicha subgroup, ) as well as Hakka Chinese. Ji'an () is an abbreviation of its  original name "" (). It has also formerly been known as Luling () and Jizhou (). Administration. The Ji'an municipal region comprises two districts, a county-level city and ten counties. Geography. Climate. Ji'an has a humid subtropical climate (Köppen "Cfa") affected by the East Asian monsoon, with long, humid, very hot summers and cool and drier winters with occasional cold snaps. The monthly 24-hour average temperature ranges from in January to in July, with an annual average of . The average annual precipitation is around . With monthly percent possible sunshine ranging from 19% in March to 59% in July, the city receives 1,641  hours of bright sunshine annually. Winter begins somewhat sunny and dry but becomes progressively wetter and cloudier; spring begins especially gloomy, and from April to June each of the months averages more than of rainfall. After the heavy rains subside in June, summer is especially sunny. Autumn is warm and relatively dry. Transportation. Jinggangshan Airport in Taihe County serves Ji'an. The Beijing-Kowloon Railway line passes through the Ji'an municipality with train stations in Xingan, Xiajiang, Jishui, Ji'an (Ji'an Station), and Taihe. Ji'an is connected to the China National Highways 105 and 319. Education. Jinggangshan University is located in Qingyuan  District, Ji'an. The Ji'an Public Library (), with its main library in Jizhou District, serves the city.