WeatherTalk: There are usually fewer storms in late summer
The reason for this comes from global weather.
FARGO — Given the natural variability of weather, almost anything can happen in any year, but as a rule, there are more severe thunderstorms across our region in June and July than in August. The reason for this comes from global weather. In the early part of summer, weather in the very high latitudes of the far north is still fairly cold. The Arctic Ocean is largely covered in ice. Meanwhile, full-on summer is already in place across the southern United States.
By August, the weather in the higher latitudes is relatively mild. Arctic ice is at its annual minimum. The South, of course, is still hot. The great temperature difference between the tropics and the North Pole results in a stronger, more energetic jet stream and stronger weather systems in June and July, trending toward weaker systems later in the summer. Strong storms can still happen at summer's end, but usually with less frequency.