The song started in a similar way to how many others do. "One day Jesse was at my house and I was playing guitar," Abels recalled to Radio.com
. "And he said, 'Hey that's pretty cool, let me record that.' And it just so happened to be 'Sweater Weather.' When we got done writing the song, when it was all said and done we were like 'Okay this is pretty good we should keep writing songs."
"I think 'Sweater Weather' might've been the best song we'd ever written," Rutherford added, "but I didn't think it was going to be the best song we'd ever write. It was kind of like getting a Platinum record, like a little tap on the butt. 'Good job, keep going.'"