The following are the main characteristics of the general circulation of atmosphere in June 2012: there is only one polar vortex center in the Northern Hemisphere with stronger strength in relation to normal years. More troughs occur in middle high latitudes, and lead to cold air to influence China. The subtropical high is near climatological normal. The south branch trough at 90°E is slightly stronger than normal years. The monthly mean temperature averaged over China is 20.2℃， which is 0.4℃ higher than the same period of normal years. The mean precipitation (108.5 mm) is 11.2% more than normal (97.4 mm). The precipitation occurs frequently in South China, while the rainfall is more than normal in North China. More than 25 provinces (regions) are attacked by the hail disaster, such as Xinjiang, Shandong, Gansu and so on. Drought sustains in Jianghuai and Huanghuai areas. The strong tropical storms “Talim” and “Doksuri” have successively affected China.