cold enough? this is temporary, for the most part, we're in prime climbing season. just a note to be courteous, alot of brian's suggestions are in good free climbing shape for the first time since this spring.
some more options for roofs/traverses
Eve traverse is supposed to go clean now a days
I've heard the bolts on the boulder across from the gate parking are set up as a ladder, looks like a cool little roof.
i'll second the recomendation for peeler direct. not too bad, and the third pitch has some great terrain to practice cleaning traverses.
not sure about the difficulty, or weather or not it goes clean, but there are some great looking caves over on the water front, Golden Gate is listed in the wasatch guide, but w/ an A, not a C
Boomerang, up by Plumbline traverses quite a bit, as does Gravity's rainbow. not sure about the later, but you could definately do Boomerang clean, just be careful, it traverses a lot, and it's not too high off the ground.