Air conditioning back rooms?

Hey all, so I work in a Southern store that is super busy. I was hired in the fall, so haven’t worked a summer. It is already super warm/humid in our back area and I learned the other day that there is no air conditioning in the whole space that isn’t the store itself (so the break room, backstock area, etc). Is this common? I feel like it will be a serious health risk in the summer months. Would love to hear how other stores operate.