The average rate on a 30-year U.S. mortgage ticked up for the first time in five weeks after falling to its lowest level in more than a year last week.

The average long-term mortgage rate moved up to 6.22% from 6.17% last week, mortgage buyer Freddie Mac said Thursday. A year ago, the rate averaged 6.79%.

Last week’s average rate the lowest since Oct. 3, 2024, when it was 6.12%.

Borrowing costs on 15-year fixed-rate mortgages, popular with homeowners refinancing their home loans, also rose this week. The average rate rose to 5.5% from 5.41% last week. A year ago, it was 6%, Freddie Mac said.

Mortgage rates are influenced by several factors, from the Federal Reserve’s interest rate policy decisions to bond market investors’ expectations for the economy and inflation. They generally follow the trajectory of the 10-year Treasury yield, which lenders use as a guide to pricing home loans.

The 10-year yield was at 4.09% at midday Thursday, down from 4.16% Wednesday.

Lower mortgage rates boost homebuyers’ purchasing power and benefit homeowners eager to refinance their current home loan to a lower rate.