The northeast is the hottest these days.

In the northeast, the hottest time of the year is often in the dog days of July. The dog days are an important solar term in the 24 solar terms of the lunar calendar, which can be divided into three stages: the beginning, the middle and the end, and usually fall in the beginning, the middle and the end of July respectively. During this period, the temperature in Northeast China will reach a very high level, often exceeding 37.8 degrees.