Kristi, I had a kalanchoe outside and it lasted for a full year (making me think it was going to be fine) the 2nd winter though was colder (below freezing for several days/nights in a row) and it didn't make it through that. I do think that many succulents can deal with cold snaps so long as they don't last too long, also I had my plants in full sun, against a cement wall, and I know that helped.
Good luck
Greg
