What did beginning of spring say?

Early spring means that beginning of spring time is before noon 12, and late beginning of spring time is after noon 12.

It's warmer in early spring and spring, and it may be colder in late spring in early spring, but the temperature is still relatively low in beginning of spring, so we should pay attention to keep warm and avoid catching a cold. In early spring, the temperature difference between day and night is large, and cold air activities are frequent. The biggest feature of beginning of spring's solar term climate is that it is warm and cold at first sight: First, the temperature difference between day and night is large; Second, cold air activities are frequent. In spring, due to the invasion of cold air, the temperature is obviously reduced, and it is often sunny during the day, which makes people feel "warm wind makes tourists drunk", but it is chilly in the morning and evening, which makes people feel "chilly in spring".