Typically peak tornado months are from April to June and thus most the 45% of storms form in this period. As compared to the rest of th months onwards i.e from June to august it decreased from 45 to 34 % and so on.
According to the American Oceanic and Atmospheric Agency (NOAA) and the National Meteorological Service, responsible for measuring the intensity, monitoring and issuing warnings to the population about thunderstorms, are about 1,200 tornadoes per year. Tornadoes in the Northern Emisphere generally occur in the midwest of the United States and near the Rocky Mountains from April to September.
