Since December storms have been battering Los Angeles. In this first week of the city’s traditionally rainiest month, L.A. is more than 7.5 inches above normal rainfall for the entire season — which ends Sept. 30. A normal year gets about 15 inches for the year; we’ve seen 15.44 inches through yesterday afternoon, according to the National Weather Service. And more rain is probable on Friday, forecasters say. So why is the six-year drought still in effect?