Mortgage rates fell slightly in the week ending Nov. 14, marking the first time weekly rates have gone down since September. The average rate on a 30-year fixed-rate mortgage dropped seven basis points to 6.79%, according to rates provided to NerdWallet by Zillow. A basis point is one-one hundredth of a percentage point.

The average rate on a 30-year mortgage in the U.S. edged lower this week, ending a six-week climb. The rate slipped to 6.78% from 6.79% last week, mortgage buyer Freddie Mac said Thursday.