Whatever outside temp is plus 5 or 10 degrees so on avg prob 50-75 f lately
You must have hit the bin lottery. My units at default freq would run at like 85-90C with 30F input.
I got my room temp down to 18C and the chips were doing 67-78 with about 0.01% HW errors over an 18h period. The fans were set to auto finally and were at about 4100rpm. I ran at a slight under clock, 587.