A slump was entirely expected, and economists aren’t too worried. They forecast a bounce back in the spring.

Take for example Joseph Lavorgna, chief U.S. economist at Deutsche Bank. He predicts the economy will rev up, growing at more than a 4% pace in April through June. In a note to clients this week, he cautioned investors not to worry if the first quarter numbers were lousy.

The January through March period tends to be the slowest for growth, he noted, and this year, colder than usual weather stunted retail sales, international trade and the housing market.