Government agencies now call every single rainfall a 1,000 year event.
In 1914, Cambridge, Ohio received almost four times that much rain in half an hour. In 1942, Smethport, PA received fifteen times that much rain in three hours.
The National Weather Service claim is equivalent to calling a weekly lottery winner a ten million year event, because the odds of any individual ticket winning are ten million to one. It is complete idiocy, and gets repeated by government climate fraudsters every week now.