The 83 degree high temperature this past Thursday was the first 80 degree day of the year. The long-term average for such an occurrence is May 6 so it occurred right near the average. Last year Fargo Moorhead did not record an 80 degree temperature until May 30 which almost made May 2011 the first May since 1983 without an 80 degree temperature.
Locally we average five 80 degree days during the month of May. The year with the most days with temperatures in the 80s or higher occurred back in 1977, which was also, unsurprisingly, the warmest May on record and by a significant margin. It is interesting to note that the summer of 1977 finished with below average temperatures meaning the warmth of May did not translate into a warm summer. Yet, other years with early heat in May, like 1988 and 1936 maintained that heat through the summer months.
Although this year has only recorded one warm day so far, it appears more are on the way next week.