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Daryl Ritchison, WDAY, Published September 27 2012

Weather Talk: Monday’s temperature rise of 45 degrees no record

On Monday, the official low at the airport was 38 degrees. That same afternoon, the temperature climbed to 83 degrees, an impressive rise of 45 degrees in one day. The following morning, the airport recorded a low of 30 degrees, a drop of 53 degrees from the previous afternoon.

The difference between the average low and the average high (diurnal range) in Fargo-Moorhead is the greatest in May and then from mid-August to late September at 24 degrees.

November, historically our cloudiest month, has the lowest average diurnal range of 17 degrees. The day with the highest diurnal change in Fargo was on April 28, 2004, when the low was 35 and the high reached 91 for a change of 56 degrees, so Monday’s change of 45 degrees fell well short of that record.

The largest differences from a high to the next day low tend to occur in winter, not spring or fall like daily changes. That record was a 72-degree change from a high of 43 degrees on Jan. 17, 1884. to the next day’s low of minus 29 degrees on Jan. 18, 1884.


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