NFL ratings took a hit in multiple windows in Week 1 amid the coverage and fallout of Hurricane Irma, though Sunday Night Football experienced an uptick with its opener.

CBS reported an 8.6 rating with an 18 share, down by about 8% compared to the same broadcast window last year.

Fox delivered a 12.6 rating and 22.6 million viewers.

The other networks said the ratings were incomplete because not all markets could be gauged.

SIGN UP!: Best NFL coverage delivered every Monday!

ESPN, which broadcast two games on Monday Night Football, also reported numbers that were slightly down from last year.

The New Orleans Saints-Minnesota Vikings game Vikings averaged a 6.8 rating and 11.4 million viewers. The Los Angeles Chargers-Denver Broncos contest averaged a 6.0 rating and 9.9 million viewers.

NBC said ratings from Sunday Night Football were up 5% from last year's opener. The New York Giants vs. Dallas Cowboys game had a total audience — including streaming viewers — of 24.5 million viewers. The TV-only audience averaged 24.2 million.

The top markets for the game was Dallas, San Antonio, Austin, Richmond and Albuquerque.