Not all tile is created equal. In choosing a ceramic tile for outdoor use you must make sure that the tile has a slip resisting surface and is low enough absorption – vitreous – so that it can withstand freeze thaw conditions. And even when you have the right tile it must be installed properly on the correct substrate. Down to Earth is low absorption and has an unglazed slip resisting surface. follow this link for more tips on installing tile for outdoors that will stand up to any climate. But if you live where its cold wait until spring when the weather warms a bit before doing any tilling outdoors!