According to 《广州市气候公报》, the annual average temperature in Guangzhou is 21.9℃. For example, in 2009, the average temperature in Guangzhou was 22.5℃, and the average temperature in all districts (cities) was 21.2 ~ 23.1℃, increasing from northeast to southwest. Compared with the same period of the year, the average temperature in Guangzhou was 0.6℃ higher, except for Conghua, which was slightly lower by 0.3℃, the others were higher.