I moved mine outside a couple weeks ago - last year I brought it in, because I loved how lovely it looked, but by the time I moved it back outside it was looking terrible because it is too dry in my apartment (humidity in the air not actual rain)
I will keep it on a shelf covered with light plastic - it does great. If you have anything to put above it, to keep off some of the main rain, this will be good! I like these types of experiments. Also it is always going to be a test, because it just matters how cold a winter you get each year!