Iowa’s unemployment rate made a slight move upward in March. The March unemployment rate rose to two-point-eight percent after two straight months at two-point-six percent. Sha Khan of Iowa Workforce Development says there’s little to explain the increase, other than a similar bump up in the national unemployment rate. Khan says March marked the 42nd consecutive month that the state’s unemployment rate stayed below three-percent. Khan says Iowa is still at very low unemployment rates. The national unemployment rate rose from four-point-two to four-point-three percent.