News There were 248 tornadoes across US in May and June. That’s one of the lowest numbers in recorded history. July 10, 2020July 10, 2020 Isabella Redjai, USA TODAY Comments Off on There were 248 tornadoes across US in May and June. That’s one of the lowest numbers in recorded history. There was a preliminary total of 248 tornadoes across May and June — a combined count less than April's 256 and among the lowest numbers in history.