The part of Anhui north of the Huaihe River has a warm-temperate, semi-humid monsoonal climate while the part south of the river has a sub-tropical, humid monsoonal climate.

The mean annual temperature is 14C to 16C, or more from north to south, and the mean annual precipitation is 750-1,700 mm., more in the south than in the north and in the hilly regions than in the plains. 

The climatic of Hefei is subtropical humid monsoon climate with frost-free period of 245 days, 4 seasons clearly. The average temperature is 15.7C annually and the rainfall is annual precipitation of 1,000 mm.