mortgage rates fell again to the lowest level in more than a month the average rate on the standard 30year fixed mortgage fell to 632 according to a survey of lenders released thursday by mortgagefinance giant freddie mac the lowest level since midfebruary mortgage rates were just under 7 in early march they have fallen steadily in recent weeks since a pair of bank failures raised contagion fears that have roiled financial markets and prompted regulators to take emergency actions