US mortgage rates post biggest drop in decade to 4.06 pct.

In this Thursday, Feb. 21, 2019 photo a recently constructed home is surrounded by snow in Natick, Mass. On Thursday, March 28, Freddie Mac reports on this week’s average U.S. mortgage rates. (AP Photo/Steven Senne)

WASHINGTON — Purchasing a home just became a lot cheaper, thanks mostly to the Federal Reserve’s decision last week to put its interest rate hikes on hold for now.