In Jerusalem we have warm enough weather to grow pineapples, with plenty of sunshine and sunny days.
But every few years it will snow, and everything will get covered in a dusting of snow for about a day.
About once a decade we'll even get about a foot of snow and have to suffer/enjoy it for a few days.
Will our pineapple plant survive the snow, or should it be covered somehow? Any information is welcome.
Florida is probably a parallel example of climate - mostly really warm but occasionally freezing, as we know from pictures of icicles hanging from oranges. University of Florida Extension has some published materials (see here) - look for the section on climate.
If you are just talking about a couple of plants, then maybe a teepee formed by a couple of 4x8 sheets of plywood leaning against each other would give you a surface that would shed snow, and a blanket thrown over the ends would give additional protection. Greenhouse? I will leave you to make a business assessment on that.
