I was reading this story on racing that talked about banking.

[...]the track that was under intense scrutiny all weekend because of changes owner Bruton Smith made to the 1.5-mile speedway. It included an increase in the banking from 12 degrees Fahrenheit to 20 (-11 degrees C to -6), and a curved pit lane unlike anything the drivers had seen before.

The bank is the slant of a turn. So, obviously, it should not be quoted in degrees Centigrade, I’m not sure about Fahrenheit, I am less familiar with imperial.