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Mortgage rates are at the lowest level of the year.

Mortgage rates held at the lowest levels of the year, Freddie Mac said Thursday.

The 30-year fixed-rate mortgage averaged 3.78% in the week ending Sept. 14.

The 15-year fixed-rate mortgage also stayed the same, at 3.08%, while the 5-year Treasury-indexed hybrid adjustable rate mortgage fell 2 basis points to 3.13%.

Rates may move higher in the wake of a gain in the 10-year TreasuryTMUBMUSD10Y, +0.16%  , according to Freddie Mac chief economist Sean Becketti. Mortgage rates typically move in tandem with the 10-year