Is there a big climate difference between Shandong and Sichuan?

I'm from Shandong, and now I'm studying in Chengdu, which is quite different. The days in spring and autumn in Sichuan are very short, and the most comfortable is summer, which is not too hot, and the highest is 3 12 degrees; The worst thing is winter. Although it won't be below zero, it doesn't see the sun several times all winter, and it often rains (it often rains all year round, it rains at night in other seasons, and it often rains during the day in winter). The most tragic thing is that because there is no heating in the south, it is particularly cold in winter, so you still have to wear down jackets or something; Besides, the humidity in Sichuan is very high. It's funny to use the dehumidifier over there in winter and come back to Shandong to use the humidifier.