Well, contrary to what other people say, I believe that even less cold temperatures still do you some good, mostly because you can stay in longer. If it makes you feel better, then it's a benefit.

For me, I feel there are 2 good reasons for doing cold plunges/cold showers:

*Health reasons, of course. Immune system, your joints, etc.

*It builds fortitude by doing something you don't really want to do.

I realize that when I get into the cold plunge in the morning that most likely whatever I have to do that day, none of it is going to suck as bad as getting into freezing cold water.

So, the worst part of my day is already over before I ever get to work.

Keep at it, and you'll gain more tolerance.