Why is it so cold all over the country recently?

The cold air in the north goes south, which leads to rain and cooling weather in most parts of the country.

The reporter learned from official website, China Meteorological Bureau that due to a strong cold air, there will be obvious cooling and windy weather in northern China from September 29th to June 2nd 10. The average or minimum temperature in northern Xinjiang, northern Gansu, most of Inner Mongolia, north-central North China and most of Northeast China will drop by 4 ~ 8℃, and the cooling range in some areas can reach 10℃. Most areas in the north are accompanied by northerly winds of 4 ~ 6.

From September 30th to June 2nd 10, due to low-level jet and shear line * * *, there will be heavy rain and local heavy rain in parts of northeast Sichuan Basin, Jianghan, south-central Huanghuai and Jianghuai.

From 08: 00 on September 29th to 08: 00 on September 30th, there was moderate rain and local heavy rain (25 ~ 40mm) in parts of southeastern Tibet, southern Sichuan, northern Guizhou, most of Chongqing, central and southern Hubei, southwestern Guangxi, southwestern Guangdong and eastern Hainan Island. There are 4 ~ 6 winds in northern Xinjiang, central and eastern Inner Mongolia and northeast China.