Carols have been sung for centuries. They come from various source. Some are modified hymns or adapted from church songs. Some of them come from old folk songs that just started to be christmas traditions. Some of them were hit songs that 'stuck' because of memorable performances or performers.
OK, first of all there is no strict definition of what makes a carol versus a regular song or a hymn. However, we can make a list of songs that most people agree are carols. Pretty much all of them mention snow, so it's not hard to get six of them. In fact, it would be harder to list 6 carols that don't mention snow. But here goes...
- Frosty the snow man
- White Christmas
- I'll be home for Christmas
- Jingle bells
- Let it snow
- Winter wonderland
There you go: six Christmas carols that have the word snow in their lyrics.