Mortgage rates fell sharply in the first week of 2009, with the average 30-year fixed mortgage rate plummeting to 5.33 percent. According to Bankrate.com's weekly national survey, the average 30-year fixed mortgage has an average of 0.39 discount and origination points.

The average 15-year fixed rate mortgage dropped to 4.85 percent, while the average jumbo 30-year fixed rate slumped to 6.91 percent. Adjustable rate mortgages were mixed, with the average 1-year ARM inching higher to 5.98 percent and the average 5/1 ARM pulling back to 5.72 percent.

Mortgage rates fell sharply as the Federal Reserve initiated a program of mortgage bond purchases. The average 30-year fixed mortgage rate is at the third lowest point ever, 5.33 percent. The two prior occasions when rates were lower both occurred in June 2003. Low mortgage rates will be a theme in 2009 as Fed and Treasury policies aim to stabilize the housing market by facilitating refinancing and enticing home buyers into the marketplace.

The sharp decline in mortgage rates since Halloween has sparked a refinancing frenzy. In late October, the average 30-year fixed mortgage rate was 6.77 percent, meaning a $200,000 loan would have carried a monthly payment of $1,299.86. With the average rate having since fallen to 5.33 percent, the monthly payment on a $200,000 loan is now $1,114.34.