How sunny are winters in Louisville?

My boyfriend and I are currently looking for a different city to move to a year or two from now. I currently live in Charleston, WV, and our winters can be fairly grey. One of the qualifications for the ideal city for me is that it’s sunnier than Charleston in the winter, as I usually get some rough seasonal anxiety/depression, largely caused by the lack of sunshine.

Louisville seems lovely, and especially because I’ve read that it’s a pretty sunny city! However, I read a comment on another post in which someone said the winters are grey. Even though we like the idea of this city, if the winters are similar to Charleston (and not sunny/partially sunny often) we may consider other cities on our list. Louisville, based on my research, has about 20 sunnier days per year than Charleston does, so I can assume that some of these are in the winter. But I can’t seem to find seasonal data on the internet, only yearly.

Any input on the sunshine in Louisville would be greatly appreciated! Thanks.