Where are you? Ours went out a fortnight ago. (They are on a south-facing wall, but it is a bit of a wind tunnel.) My wife is now part-way through planting out the tubs that decorate the side wall. (It's a row of garages, with a 5' high brick wall & looks quite ugly until it's clothed: I'll try to get organised & post some photos.)
We put them out during the day and then take them in again at night, just for the first few days.