Hefei has a humid subtropical monsoon climate, characterized by distinct four seasons, mild weather, moderate rainfall, and simultaneous rain and heat. The average annual temperature is 15.7°C, with approximately 1,000 mm of precipitation and a frost-free period of 228 days.
Hefei has a humid subtropical monsoon climate, characterized by distinct four seasons, mild weather, moderate rainfall, and simultaneous rain and heat. The average annual temperature is 15.7°C, with approximately 1,000 mm of precipitation and a frost-free period of 228 days.
Climate Type and Basic Characteristics
Hefei is located in the mid-latitudes between the Yangtze River and the Huai River, and has a humid subtropical monsoon climate with transitional characteristics between the north and the south. Summers are hot and rainy due to the influence of the southeast monsoon, while winters are mild and dry due to the northwest monsoon.
Temperature and Precipitation
Temperature: The average annual temperature is 15.7°C, with an average January temperature of 2-4°C and an average July temperature of 28-31°C. Extreme highs can reach 39°C and lows around -20°C.
Precipitation: Annual precipitation is 900-1100 mm, with over 60% concentrated between May and September. The plum rain season (June-July) accounts for over 30% of annual precipitation and is prone to flooding.
Seasonal Characteristics
Spring (March-May): Temperatures rise rapidly, but cold air activity is frequent, with large temperature swings and the risk of "late spring cold snaps." Precipitation accounts for 25%-30% of the annual total.
Summer (June-August): Hot and humid, with potential for summer droughts after the plum rain season, and highs reaching 39°C.
Autumn (September-November): Precipitation decreases sharply (accounting for 15%-20%), with large temperature swings between day and night, and occasional autumn droughts.
Winter (December-February): Average temperature 1-4°C, with frequent rain and snow, making it feel damp and cold.