There have been several renegade, late-season snowfalls this year, including the big one last week from central Minnesota into Duluth and the North Shore. May snowfalls are rare in our region, but not without precedent. Six years ago, a band of more than a foot of snow fell across southeast Minnesota May 2. The 18 inches at Blooming Prairie is a state record storm total for May. Several locations in western North Dakota have records of 1-3 inch snowfalls as late as the first week of June.
Here in Fargo-Moorhead, measurable snow has happened in 23 of the May months since 1886. In May 1907, it snowed measurably on four separate occasions. The latest snowfall on record was on May 21, 1963, when it snowed just 0.1 inch. One of these years, snow is likely to fall at an even later date than May 21. There are numerous folk tales of mid-summer snowfalls that supposedly occurred decades ago, but these are not likely factual.