As in North America that is part of the United States, recently several opposing influences on the characteristics of climatic events in different areas of the country at the same time have been set temperature records that exceed a normal, and are well below it.
Abnormally high temperature, not typical for January, mainly observed on the line from Ontario to Florida. At the same time, unusual frosts were recorded in the western states. More temperature records have been beaten on the last day of the past week on the mid-Atlantic coast and in the western part of New England.
Buffeted by official records January 12, 2013 (zero temperature):
Buffeted by official records January 13, 2013 (minus temperature):
Unofficial record January 13, 2013 (zero temperature):