Maybe he's just saving up for his time in Buffalo.  Normally, Dierks Bentley takes a Polar Plunge on New Year's Day but this year he decided to postpone it.

There were no details as to why it was being postponed but he tweeted this out to explain:

There's no question that everything Dierks Bentley does is epic.  We are excited to have him back to Buffalo as he'll headline the 2015 Toyota Taste Of Country!