"Cold Sunday" was a meteorological event which took place on January 17, 1982, when unprecedentedly cold air swept down from Canada and plunged temperatures across much of the United States far below existing all-time record lows. The temperature hit 25 below zero at the National Weather Service (NWS) near Negaunee. It also hit 25 below in my hometown of Milwaukee. These record-low temperatures were at the high end of the western Great Lakes temperature spectrum. Iron Mountain registered 31 below and Ironwood crashed to 41 below zero—an all-time record low at that location.

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