Why is it so cold recently?

The weather is very cold, mainly including the following reasons.

First, spring, summer, autumn and winter alternate, seasonal changes in nature. Needless to say, it's late autumn in the north.

Second, it is related to regional latitude. High latitudes are the main cold areas on the earth's surface, because there is relatively little solar radiation and the climate is cold all year round. Its climate mainly includes sub-cold zone coniferous forest climate, polar climate and so on.

Third, North China in China basically belongs to high latitude. If it is in the south, such as Guangdong, Guangxi and Hainan, it will be warmer even in winter.

In autumn in the north, the forest has been completely dyed and the temperature is low.