Enjoyed the back and forth about cold here in Texas. I grew up in north west Kansas, about 300 miles straight north of here.
Here in the panhandle some of the folks I know talk about the "really cold winter" that the lake froze back in maybe '82. (What they told me that they mean by the lake freezing was that a 1/4 inch skiff of ice formed on the lake about 200 yards out into the lake.)
Up in NW Kansas all of the lakes freeze, and folks ice fish on them. Even so, I know it is a LOT colder for you folks up north. What makes the cold seem worse is the wind we get in western Kansas and west Texas. In NW Kansas a temperature of zero and a 40 mile per hour wind seems like it will really cut through you.