Sales of new U.S. homes unexpectedly plunged in March to the lowest level in eight months, reflecting a broad-based retreat that signals the industry is facing bigger challenges than just bad weather.

Sales dropped 14.5 percent to a 384,000 annualized pace, lower than any forecast of economists surveyed by Bloomberg and the weakest since July, Commerce Department data showed Wednesday in Washington. The median forecast of 74 economists surveyed by Bloomberg News called for the pace to accelerate to 450,000.