Bob Brown of Columbia watches the daily high and low temperatures for the Lower 48, below our national weather map. "A couple of days ago, the low temperature in International Falls, Minn., was minus 40 and the high was 87 in Texas. What is the widest spread recorded in the winter and summer?" The National Weather Service sent me to the National Climate Data Center, where John Leslie reported they "don't have a database" that would answer the question. Bob stumps the chump.
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