Consumer confidence climbed in March to the highest level in six years, propelled by improved optimism about the economy's prospects, signaling growth will strengthen after a weather-related slowdown, according to the Conference Board, Bloomberg reported.

The Conference Board's monthly sentiment index rose to 82.3, the highest since January 2008, from 78.3 in February.

"Signs of spring might be evident and might be getting people a little more optimistic that the future is going to be better," said Joe LaVorgna, chief U.S. economist at Deutsche Bank Securities Inc.