Is spring colder than winter in the south?
What you said seems very reasonable. Melting snow will be colder than snowing, and it will be relatively colder when the snow melts. This is the most basic chemical knowledge, but that is relative, not absolute!
The influence of melting snow in the north also has a range. It is impossible for the whole of China to be implicated!
I'm in dongguan. In winter, you have to wear a down jacket in the coldest situation, but that period of time is quite short, that is, within half a month of the New Year. It began to heat up after the New Year. Today is February 16th, the temperature is 21-27 degrees Celsius, and many people have put on short-sleeved shorts.
As the one upstairs said, because the latitude in the south is lower, the sun shines at a higher angle and gets more heat, so the temperature in the south is higher and warmer than that in the north. When you arrive near the equator, it is a hot summer all year round, so there are no four seasons. In the south, there is basically no such thing as four seasons. Even if there is one, it is a hollow reputation. If it is hot for half a year, it will be cold for dozens of days.
So you can't say that spring in the south is colder than winter!