One storm even veered as far east as Ireland -- underscoring how bizarre this hurricane season was. Here are six ways the 2017 hurricane season (from June 1 to November 30), left its mark. Costliest hurricane season ever? A fourth storm, Hurricane Nate also made US landfall, but never reached major hurricane level. A busy season... but not busiestThis season had more than the usual number of storms with 17 named storms, 10 hurricanes and six major hurricanes.

Source: CNN November 30, 2017 09:22 UTC