20 12 is it hot in Shanghai?

During the 30 years from 1970s to 1990s, the average number of days with high temperature above 35℃ in Shanghai was 9 days, but since 2000, this number has obviously increased. It is estimated that the number of hot days will reach about 25 this year, mainly in July and August, especially in August. Taking 20 10 as an example, the number of high temperature days actually reaches 14.