Summer: 94-95 hot, 84 cool, ambient in room 80-83
Winter: Big rack cools down to 80 cool/85 warm for 16 hours, back to 95/84 for the remainder. Ambient in room is 77-81 depending on if the heater was needed or not. Smaller racks(32/16qt and 6qt baby racks) are constant at 94-95 warm and 82-84 cool.

All of mine ate throughout winter except for one 900g female who I bought in December. She's not in the snake room and is just in a 32qt tub on the floor.