One of our group broke a paddle in Phil's, had a swim and decided that he had had enough for the day. Other people without gloves were feeling the cold, especially with the wind (trouble holding the paddle).
Apparently the water was quite a bit colder from the week before (I had skipped a couple of weeks, and yeah, it was colder). I was toasty in my drysuit, gloves and full head gear. When I took off my head gear at Pushbutton to eat lunch I realized just how cold it was.
I'm just saying, if you want to be comfortable when paddling (and maybe swimming) at this time of the year, especially if you are running the full river, dress for it!
Cheers,
Adam