NEW YORK (CNN/Money) - Mortgage rates drooped for the week ended July 13, with the average 30-year fixed mortgage easing to 6.18 percent, down from 6.3 percent the week prior.

"Rates on 30-year and 15-year mortgages dropped for a third straight week," said Mavel Vargas, mortgage lending research manager at Informa Research Services. "The lower rates are due the investor's growing confidence in the Federal Reserve's ability to keep inflation under control. "

The benchmark mortgage rate stood at 6.47 a month earlier, according to Informa, and had a range of 5.46 percent to 7.12 percent for the week ended July 13.

Weekly rates information • 12-mo. CDs rates rise • Credit card rates mixed • Mortgage rates falter

The average 15-year fixed mortgage rate pulled back to an average of 5.59 percent, down from 5.72 percent the previous week, with a range of 4.69 percent to 6.99 percent. Rates stood at 5.85 percent a month earlier.

Adjustable rate mortgages (ARMs) fell to a 4.75 percent average from 4.84 percent the week prior, with a range of 3.05 percent to 6.01 percent. ARM rates stood at 4.78 percent a month earlier.

Below are the rates for three key mortgage products from five top national mortgage lenders. You can compare rates from more institutions with the rate-search tool above.

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