Based on this gadget ( http://www.jebiga.com/tempescope/ ), and the season, I now have a headcanon that Dipper crafts temporary(lasting maybe a month) spheres of adjustable weather (with options for anything from a pleasant spring day to a thundering rainstorm to a blizzard) that can grow to a 20 feet radius or shrink to 2 inches, and gifts them to all the Pines. After some convincing from Mabel, he somewhat begrudgingly gives one to Pacifica as well, though he’s later glad he did when he learns how much her parents hate it. She quickly earns a permanent place on his Christmas gift list.