Why is Nanning only more than 300 kilometers away from Guilin, but the temperature in winter is more than ten degrees?

Guilin is located at low latitude and belongs to subtropical monsoon climate. The territory has a mild climate, abundant rainfall, long frost-free period, abundant sunshine and heat, long summer and short winter, four distinct seasons, basically the same rainy and hot seasons, and favorable climatic conditions. The annual average temperature is 65438 09.3℃. It is the hottest in July, with an average monthly temperature of 28℃, and the coldest in 65438+ 10, with an average monthly temperature of 7.9℃. The annual average frost-free period is 309 days, the annual average rainfall is 1949.5 mm, the average evaporation is 1490 ~ 1905 mm, and the annual average relative humidity is 73 ~ 79%. The wind direction throughout the year is mainly northerly, with an average wind speed of 2.2 ~ 2.7m/s and annual average sunshine hours1670h. The average air pressure is 994.9 hectopascals.

Nanning is located in the south of the Tropic of Cancer, with humid subtropical monsoon climate, abundant sunshine, little frost and no snow, mild climate, long summer and short winter, with an annual average temperature of about 265,438 0.6 degrees, an extreme maximum temperature of 40.4 degrees and an extreme minimum temperature of -2.4 degrees. The coldest winter1October 12.8 degrees Celsius, and the hottest summer is 28.2 degrees Celsius in July and August. The annual average rainfall is 1304.2 mm, and the average relative humidity is 79%. The climate is characterized by heat and humidity. Relatively speaking, summer is generally humid, winter is slightly dry, and wet and dry seasons are distinct. Summer is much longer than winter, and the hot time is longer. The climate in spring and autumn is mild, and the rainy season is concentrated in summer. Nanning is rich in trees, flowers and natural products all year round. It is also a veritable "winter goes and spring comes, the grass does not wither, and flowers often bloom but not spring."