While the temperture on the cool side it too cold the one on the hot side is too hot and shout be lowered to 33.

As far as cool side it depends on the ambient temp of the room where your BP is kept.

Your options are

Heating the room (not worth it for one animal)

Having a lamp on the cool side (will dry up your wnclosure)

Having a second UTH and a second T-Stat during the winter.