National Weather Service United States Department of Commerce
Extreme Temperature Swing from Saturday afternoon to Monday morning
 

The region experienced a roller coaster ride of temperatures from highs December 17th to lows on December 19th. The 1st graphic shows high temperatures on Saturday, which exceeded the 70 degree mark in many locations. The 2nd graphic shows low temperatures the morning of December 19th, dipping all the way into the single digits and teens. The 3rd graphic shows the temperature change from highs on Saturday afternoon to lows Monday morning. Nearly everywhere but the far northern counties saw a temperature change of 55 to 65 degrees over this time period! This is one of our largest temperature drops on record. Looking back at records since 1938, the 59 degree temperature drop in Paducah, KY from Saturday afternoon to late Sunday evening was tied for the 2nd largest drop from one calendar day to the next. Only the 61 degree drop back on January 25-26, 1943 was greater. In Evansville, IN, they experienced a 58 degree drop from Saturday afternoon to late Sunday evening. This ties for the 6th largest temperature drop on record from one calendar day to the next, dating back to 1897. You have to go all the way back to February 20-21, 1963 to experience a larger drop. Hope you enjoyed the ride!