Is it cold to go to America in early April this year? Do you need to wear cotton-padded clothes?

The United States is very big, the latitude is similar to that of China, and the temperature difference between north and south is very large. I don't know exactly where you are going.

In the cold places in the north, it is still a little cold in early April, but you don't need to wear cotton-padded clothes, thick coats and velvet coats.

If you go to Florida in the south, it's already summer. Pass short-sleeved shorts.