I grew up mostly in northern Ohio.
We're talking about stores with "seasonal" aisles, where they stock Halloween and Christmas and Easter candy during those times.
A store that sells heaters ALWAYS stocks heaters, all year long. Same thing with a store that sells gloves, or sporting goods. Sure they stock MORE of those things during the winter months, but that's not the same thing as the case with truly seasonal stuff; once Easter is over, the Easter candy and decorations and every single trace of "Easter" in the entire store all go away completely until the next year. You can't buy chocolate Santas in April and you can't buy Easter egg dye kits in August.