Geography

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 6.5 °C (43.7 °F) in January to 29.5 °C (85.1 °F) in July, with an annual average of 18.40 °C (65.1 °F). The average annual precipitation is 1,520 mm (60 in). 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 210 mm (8.3 in) of rainfall. After the heavy rains subside in June, summer is especially sunny. Autumn is warm and relatively dry.