From my child hood i use to take cold shower all the time , it doesn't matter how bad the weather is. i was a professional in this
I think that's a bit crazy but hey if you're used to cold showers in winter, keep it up, I'm sure it's good for waking you up in the morning.
I never take cold showers, unless it's a really hot day... so no way, not with this winter. I try to avoid touching cold water as much as I can.