Sunday marked a historic day in Indiana. The anniversary of the coldest recorded temperature in state history. Oddly enough the record was set in Central Indiana in New Whiteland about 20 miles south of Indianapolis.
The record set on that day January 19th, 1994 was -36 degrees. Leading up to the record snow systems had dropped about 8 inches of snow across central Indiana and behind the snow was a huge blast of frigid arctic air. That particular morning the entire state fell below zero. Along the I-70 and I-65 corridors temperatures ranged from -20 and -30, still below the record.
By comparison in our own backyards the record low for South Bend is a meek -22 degrees and a tolerable -24 degrees.
You can read more here from the National Weather Service