Mortgage buyer Freddie Mac says the average rate for the 30-year loan increased to 3.51 per cent from 3.42 per cent last week. That's still near the average of 3.31 per cent reached in November, the lowest on records dating to 1971.
The average on the 15-year loan rose to 2.69 per cent. That's up from 2.61 per cent last week, which was the lowest on records going back to 1991.
Low mortgage rates have helped sustained the housing recovery that began last year. Home sales and construction are up from a year ago, and prices are rising in most U.S. markets.