by The Associated Press Posted Aug 4, 2016 8:25 am MDT Last Updated Aug 4, 2016 at 11:40 am MDT AddThis Sharing ButtonsShare to TwitterTwitterShare to FacebookFacebookShare to RedditRedditShare to 電子郵件Email This Thursday, May 26, 2016, photo shows a home for sale in Carlsbad, Calif. On Thursday, Aug. 4, Freddie Mac reports on the week’s average U.S. mortgage rates. (AP Photo/Lenny Ignelzi) Average US 30-year mortgage rate declines to 3.43 per cent WASHINGTON – Long-term U.S. mortgage rates declined this week after rising for three straight weeks, continuing to lure prospective homebuyers.Mortgage giant Freddie Mac said Thursday the average for the benchmark 30-year fixed-rate mortgage fell to 3.43 per cent from 3.48 per cent last week. The average rate is down sharply from 3.91 per cent a year ago.The 15-year fixed mortgage rate dipped to 2.74 per cent from 2.78 per cent last week.Record-low interest rates this year have helped spur home purchases and boost the housing market. The Federal Reserve has been holding its key short-term rate near zero since 2008, and a statement from the Fed last week after its latest policy meeting had led many economists to conclude that a strengthening economy would lead the central bank to resume raising rates as soon as September.But after a government report last Friday showed a surprisingly lacklustre economy in the second quarter, many economists said a September rate hike was now probably off the table. The Commerce Department data showed that gross domestic product — the broadest gauge of the economy — grew just 1.2 per cent in the April-June period.To calculate average mortgage rates, Freddie Mac surveys lenders across the country at the beginning of each week. The average doesn’t include extra fees, known as points, which most borrowers must pay to get the lowest rates. One point equals 1 per cent of the loan amount.The average fee for a 30-year mortgage remained at 0.5 point this week. The fee for a 15-year loan also was unchanged from last week at 0.5 point.Rates on adjustable five-year mortgages averaged 2.73 per cent, down from 2.78 per cent last week. The fee held at 0.5 point.