When does it start to warm up?

The warm time is different in different areas. Spring in China begins at the beginning of spring, and it will get warmer in beginning of spring one month later on February 4th. The southern region usually begins to feel warm in March or April, while the northern region may not feel warm until May. For example, in Harbin, the annual heating time starts from 65438+1October 20th and lasts until April 20th of the following year. This shows that the weather in Harbin is usually cold before the start of the heating season, and it begins to warm up at the end of the heating season.