What temperature would a rat be most happy living in?

Question

What temperature would a rat be most happy living in?

Answer 1

70 degrees F.

But they can tolerate temps up to about 85.

Answer 2

room temperature is perfectly fine, around 65-75 degrees Fahrenheit is perfect. ideally no less than 45 degrees is fair and no more than 80 degrees, though they can tolerate it, it really isn't comfortable above that temp.