What is the temperature for a tornado?

Tornadoes don't form at an exact temperature, as they depend upon a wide variety of complex factors of which temperature is just one. It is highly unusual to see them in temperatures below 50 degrees Fahrenheit, though not unheard of, particularly at high elevations.

Tornadoes form best when very warm, moist air is available. The most severe events have been preceded be temperatures in the mid 80s to the 90s.