Snow in the countryside

I swear that Seoul gets a lot less snow than everywhere else. I was down in Chung-Cheong Nam Province in my wife's hometown of Hong-Seong. It snowed about 3 inches overnight, and then an0ther couple in the morning. Why can't we get lots of snow like that in Seoul? I have seen pictures of Seoul from many years ago with lots of snow and the Han River frozen over. In fact, they used to ice skate a lot on the river. I guess all those turds in it give it enough salt content that it doesn't freeze.