When the sun shines, and the temps rise above 40, I use mine. When the temps rise really high, I'll wash laundry in the evening, and in the morning hang it out before the outside becomes a sauna. And when the sun sets (on the other side of the house) and shade stretches across the line, the laundry will come in.
Sheets - my favorite thing to hang on the line.
I can't use fabric softener - allergic - so things can get a little stiff, but ooooh do they smell good.