Yesterday marked the end of the three-month meteorological winter, and we got off easy. December and January each averaged about 6 degrees above normal at BWI-Marshall, with less than an inch of snow. That changed in February. We managed only a few days of above-normal temperatures, suffered steep utility bills and 8.5 inches of snow at BWI. That's barely half the average winter's snowfall, so we've escaped the worst. So far. Remember, March has produced two of Baltimore's 10 deepest snowstorms.