I’ve been asked to play outside Paddle Out for a fellow surfer who suddenly passed. Its a memorial with one tune to be miked “Amazing Grace” tomorrow am.. . Temp will be 30 degrees breezy NW winds at 20…Humidity as dry as ’ … I have played in the cold but just wondering…this is real cold and dry…I think I’ll manage but could this do any damage on a permenant basis to the reed…I might just leave the Pipes and do this on whistle…??? 
wood can and does crack. If I remember correctly, you have a David Williams set. It would be foolish to take any risk with that thing.
Imitation ivory cracks quicker than wood, and real ivory even quicker.
Reeds are easily replaceable, your pipes… not so much so.