Average U.S. rates on fixed mortgages rose this week but remained close to record lows. Cheap mortgages have made home buying more affordable.

Here's a look at rates for fixed and adjustable mortgages over the past 52 weeks:

Current avg. Last week 52-week high 52-week low
30-year fixed 3.40 3.34 4.08 3.31
15-year fixed 2.66 2.64 3.30 2.63
5-year adjustable 2.67 2.71 2.96 2.67
1-year adjustable 2.60 2.57 2.84 2.52
All values in percentage points
Source: Freddie Mac Primary Mortgage Market Survey