No, this is a false urban legend, and it was Alabama....Not
Tennessee.

Yeah, they've got some real dimbulbs in Alabama.
One guy got elected and on his first day in office presented a bill
which would move the month of February back on the calendar to fall in
between July and August. He reasoned that February is a short month
anyway and is usually cold and rainy. Therefore, it would be better to
have it fall between those two hot, dry Summer months.