100 degree temperatures have become somewhat rare in the past 25 years in eastern North Dakota. Although western North Dakota have recorded 100 degrees temperatures a bit more frequently, even in that area, they are far less frequent then they were in the past. One reason often given for the lack of extreme heat in the past couple of decades has been the wetter soils associated with more rain during this period. This could certainly be considered one of the reasons, but as in most things weather, it’s only one of the factors. Additional reasons have been more cloudiness in the region as well as the atmospheric setups for extreme heat has been lacking.