How does the climate differ between northern and southern Hunan?

The climate in Hunan varies significantly between its northern and southern regions, with the north generally experiencing more extreme weather conditions.1

Key climatic differences include:

• Frost-free period: The north has an average of 260 frost-free days per year, while the south enjoys a longer growing season with an average of 300 days.1
• Temperature: Northern Hunan is more susceptible to cold air waves from Mongolia during the winter, which can damage local agriculture such as tea bushes and fruit trees.1
• Precipitation: While the province receives ample rainfall overall, the total annual precipitation of 56 inches (1,420 mm) decreases as one moves from the south toward the north.1

Both regions experience long, humid summers and are influenced by wet monsoons that bring heavy rains, particularly between spring and summer, which can lead to flooding in the low-lying northern plains near Dongting Lake.12