Unsweet iced tea is consumed year-round in the Northwest.
I’m from the South and never did like sweet tea. It’s always had to be unsweetened for me. Yes, I know, it’s heresy in the South! Maybe that’s why I went up north.
I’m from Texas and I hate sweet tea. When I’m in Texas, I can easily get unsweetened tea just about anywhere.
In Canada and Seatle, I couldn’t get it.
In California (where I live), some places have it and some just carry the rasberry snapple type tea that I can’t stand.
I know lots of Texans that just drink unsweetened tea.