Cindi I did not bring them inside. They got what every rain/snow that fell. The protection was the styrofoam coolers and the lids for height. Think of a tall styrofoam box without a top. I used duck tap to build the tops up.
I was attempting to create a outdoor warmer environment. I tried that with blocking the wind and insulation via styrofoam (received them from from Omaha Steaks shipment of frozen steaks) and the pine needles/fall leaf collection.
We use to have severe winters but it has been maybe 10 yrs since we have had long hard winters. My last frost date is suppose to be after Mother's day. Recent yrs it has been April vs May.