Looking back at my records the low on the 24th came at 11:45pm, so the low for the 24th and the 25th occurred within 8 hours of each other during the same overnight period. I recorded a low of -1 on the 24th (PM), -4 on the 25th (AM), and +2 on the 26th. We had a nice icing event on the 27th with a low of 18 and a high of 29, then there was another cold front that went through on the 29th that resulted in a low of +6 on the 30th and a high of 23. The following morning (31st) the low was +4.
Christmas 1983 is in my top 10 weather events I have experienced. The pictures below are of the Smith River in Eden taken on January 1, 1984 where the Ice was between 7 and 9 inches thick and safe enough to walk across.