if the ground is thawed and not saturated, have at it. Though you might have to repeat in the event of another snow/wind event.
March 2012 i had my lawn raked and ready for spring on St Pats day
wild snow pack differences in my yard. front yard is sunny, and has less than 12".
way back yard (500' back) is a cold spot-no sun, ~50' lower elevation, a bit swampy in parts. snow is knee deep in spots. takes forever to melt back there.