More precipitation fell in the continental U.S. in the 12 months ending in May 2019 than ever recorded. Records go back more than 120 years. Blue areas had more groundwater than usual for May. Orange and red areas had less.

More precipitation fell in the continental U.S. in the 12 months ending in May 2019 than ever recorded. Records go back more than 120 years. Blue areas had more groundwater than usual for May. Orange and red areas had less.