According to the notes recorded by Liu Yueshen in the Yuan Dynasty，Jiangxi Province was exposed to severe cold climate，indicated by heavy snow，thefrozen rivers，and cold summer from 1328 to 1330 AD  It snowed in regions as south as the Nanling Mountains in 1328 and 1329 AD  In 1329 AD，the rivers in the Jishui County at the latitude of around 27°N were frozen The summer in the southern part of Jiangxi Province was described similar to that in the Inner Mongolia Plateau in 1330 AD The cold climate of these three years was like that of the extreme cold years from the 17th to 19thcenturies  It is one of  the rare extremely cold events in the past 2000 years