Annual precipitation stands at around 1,610 mm (63 in); with monthly percent possible sunshine ranging from 23 percent in March to 60 percent in August, the city receives 1,832 hours of sunshine annually in average.
It is now a large-scale producer of cotton textiles and cotton yarn.
Nanchang has a monsoon-influenced humid subtropical climate (Köppen Cfa) with distinct four seasons.
Winters are short and cool with occasional frosts; it begins somewhat sunny and dry but becomes progressively wetter and more overcast.
Located in the north-central part of the province, it is bounded on the west by the Jiuling Mountains, and on the east by Poyang Lake.
Because of its strategic location connecting the prosperous East and South China, it has become a major railway hub in Southern China in recent decades.
Autumn is warm to mild with the lowest rainfall levels of the year.