Every change in mortgages today was for the better for borrowers, though only slightly. Average rates for various types of home loans eased by 1 basis point (a basis point equals 1/100 of a percent) nearly across the board. The lone exception was the 15-year fixed refinance loan which dropped 2 basis points on the heels of Wednesday's 1 basis point decline, and now sits at an extremely attractive 3.11%. The short-term loans, both the 15-year refinance and 15-year fixed, remain the lowest-cost options among the various types available. Here are today's average mortgage rates across the U.S., along with where they stood a month ago. Mortgage Type Mortgage Rates Today Mortgage Rates 1 Month Ago 30-year fixed jumbo 4.46% 4.49% 30-year fixed 3.95% 4.00% 15-year fixed 3.14% 3.14% 30-year fixed refinance 3.93% 4.02% 15-year fixed refinance 3.11% 3.21% 5/1 ARM 3.21% 3.15% 5/1 ARM refinance 3.35% 3.32% Data source: Bloomberg. National average rates which may include points. Even before today's decreases, home shoppers were enjoying historically low interest rates. For some perspective, here are the average mortgage rates from way back in May 2002. Mortgage Type Mortgage Rates May 2002 30-year fixed 6.81% 15-year fixed 6.28% 1-year ARM 4.79% Data source: Federal Home Loan Mortgage Corporation (Freddie Mac). Rates do not include points. For current homeowners researching a home equity line of credit (HELOC) or home equity loan, the strong housing market continues to work in your favor. HELOC rates stayed at 5.28%, while equity loan rates dropped a basis point to 5.28%. Last month, HELOCs were 5.23% and equity loans 5.31%. 5 Simple Tips to Skyrocket Your Credit Score Over 800!Increasing your credit score above 800 will put you in rare company. So rare that only 1 in 9 Americans can claim they're members of this elite club. But contrary to popular belief, racking up a high credit score is a lot easier than you may have imagined following 5 simple, disciplined strategies. You'll find a full rundown of each inside our FREE credit score guide. It's time to put your financial future first and secure a lifetime of savings by increasing your credit score. Simply click here to claim a copy 5 Simple Tips to Skyrocket Your Credit Score over 800. The Motley Fool has a disclosure policy.