How many months are there in summer in Harbin? How many days is it hot?

Half of the summer in Harbin is from the end of May to the middle of August. The temperature is about 20 to 25 degrees in June, 25 to 30 degrees in July, 23 to 30 degrees in August to mid-August, and it begins to get cold in September. It's only hot in July, hehe, of course, it depends on whether there is much rain. It's cool when it rains more, and it's hot when it rains less. But there are few sultry weather in the south in Harbin, so the climate is quite good.