Winter Climbing at Sinks

I heard that Sinks Canyon can be a sweet place to climb in the winter because of its south facing nature. What kind of temps are needed to be comfortable there? Thanks for the help!

Climbed three routes on the main wall today in 25°F with a t-shirt on. It was sunny which does make a difference. Climbed in 0°F with Sun and it wasn't bad at all. Stop in at wild iris on main street for good beta.