How thick is the quilt covered in Anhui in March?

March belongs to the early spring season. Although the spring is chilly and the temperature is still relatively low for a few days, after all, the early spring is coming to an end and the overall temperature is gradually warming up. The weather is not very cold, but the temperature difference between morning and evening is still very large. Please keep warm in case you catch a cold. Due to the vast territory of China, the climate in different regions is quite different. At the end of March in the south, the sun is shining brightly, and the temperature in most areas is unbearable like early summer. There may still be unmelted snow and ice in some parts of the north, and the temperature is still low.