The average U.S. long-term mortgage rate climbs this week to 6.51%, the highest level in nearly nine months, increasing borrowing costs for homebuyers during the spring peak season. Freddie Mac reports the benchmark 30-year fixed rate rises to 6.51% from 6.36% the prior week. Although the rate is up sharply week to week, it remains below the 6.86% level from a year ago and below the threshold seen around early February when rates briefly hovered near 6%.\n\nBoth outlets link the increase to higher long-term bond yields. They point to investor expectations for inflation and economic growth, alongside the 10-year Treasury yield as a key benchmark for mortgage pricing. The 10-year Treasury yield rises as crude oil prices move higher after renewed strain in the Middle East, with the closure of the Strait of Hormuz cited as a driver of energy-market volatility and inflation concerns.\n\nThe higher mortgage rates also affect other products. The average 15-year fixed rate increases as well, and mortgage applications decline, with some borrowers shifting toward adjustable-rate mortgages. Overall, the change is associated with continued softness in homebuying and housing activity.