From the 1920s through the 1980s Fargo Moorhead
averaged between 140 and 170 days per decade with temperatures of 90 degrees or
higher The 1930s had by far the highest number of such days with 219
being recorded. The 1980s had the second highest total with 168 90 degree
days.
During the 1990s, 90 degree weather quickly became much less
frequent with only 97 days at or above 90 degrees being recorded which was the
fewest since the 1900s decade. Although 90 degree weather has been more
frequent this decade with 97 such days being recorded so far, the last two
years of this decade (2009 and 2010) would need to be well above average years
to get this decade to the level most of last century achieved.
Weather
patterns are always changing; therefore the odds are high that this area will
be returning to more frequent 90 degree summer weather in the coming decades.
