Our region is renowned for cold winters, and each winter has its own coldest temperature. Taking the last 100 years of record, the average lowest temperature of a winter in Fargo Moorhead is -27 degrees, ranging from -12 degrees in 2002 to -39 in 1996. There are a few outlier records into the -40s in the 1880s, including the all-time record low of -48 set in 1887. But for the purpose of comparison, we will use the past 100 years.
In the past 100 years, 94 years have delivered at least one temperature as low as -20 degrees, 63 have been as low as -25 degrees, 36 have gotten to -30 degrees, and seven have been as cold as -35 degrees. For Grand Forks, the average is -30 degrees, but the range is from -14 degrees in 2002 to -43 in 2004. In the past 100 winters, 97 have gotten to -20 degrees, 83 to -25 degrees, 53 to -30 degrees, and 17 to -35 degrees.