I rode today in 35 degree temperatures in pouring rain, through Arlington and DC, on the W and OD trail and the C and O canal. On a carbon bike. My shoe covers kept my feet fine for half an hour then I was riding with lakes in my shoes. My left cleat broke, so if I pull up or use any of the available float I unclip. New handlebars are great though (3T rotundo pro)... Excellent ride though.

What are some of the worst conditions you've ridden in (your choice - not stranded and change of weather)