The Thomson Reuters/University of Michigan final consumer sentiment index dropped to 90.7 in May from 95.9 in April, beating expectations for a decline to 89.9, up from the preliminary estimate of 88.6.

"The decline was widespread among all age and income subgroups as well as across all regions of the country," the Surveys of Consumers chief economist at the University of Michigan Richard Curtin.

The current economic conditions index declined to 100.8 in May from 107.0 in April.

The index of consumer expectations plunged to 84.2 from 88.8.