Abstract:The main characteristics of the general atmospheric circulation in July 2015 are listed as follows: there are several polar vortex centers in the Northern Hemisphere. In the midhigh latitudes, the circulation presents a fivewave pattern. The Northwest Pacific subtropical high is stronger than normal. Meanwhile, the monthly mean precipitation amount is 88.7 mm, which is 26.5% less than its climatological mean, the monthly mean temperature is 22.1℃, 0.2℃ higher than normal. There are 7 severe rainfall events with extreme precipitation records observed at some stations in China. Five tropical cyclones are active over the Northwest Pacific Ocean and the South China Sea, and two of them land China. Longlasting high temperature events occur in Xinjiang, and drought in North China, Huanghuai Area and other places. Meanwhile, 24 provinces suffer from hail disasters.