I personally am not worried - S will never again face batters swinging anything but wood.
I was just wondering about the temps and the possibility of it leading to a bat breaking (Actually breaking really doesn't matter; shattering and sending pieces over the infield was more of a concern.)
My coldest game was played at the University of Maryland - temps between 31 - 35 with intermittent snow flurries. Game was played in the first weekend of March some years back.