Average U.S. rates on 30-year fixed mortgages edged down slightly this week.

Average U.S. rates on 30-year fixed mortgages edged down slightly this week.

Here's a look at rates for fixed and adjustable mortgages this week and over the past year:

Current avg.Last week52-week high52-week low30-year fixed4.134.154.584.1015-year fixed3.233.243.603.205-year adjustable2.972.993.282.931-year adjustable2.392.402.712.38All values in percentage pointsSource: Freddie Mac Primary Mortgage Market Survey