WASHINGTON – The outlook for the U.S. economy appeared dimmer Monday after a report that Americans spent less at retail businesses for a third straight month in June.

The report led some economists to downgrade their estimates for economic growth in the April-June quarter. Many now think the economy grew even less than in the first quarter of the year, when it expanded at a sluggish 1.9 percent annual rate.

Spending in June fell in nearly every major category — from autos, furniture and appliances to building, garden supplies and department stores. Overall, retail sales slid 0.5 percent from May to June, the Commerce Department said.