That time last year, the alpine was still full winter (with solar warming on south aspects), there were a few storms and decent pow skiing. Mid mountain and below were spring like most of the time, with re-freeze at night, just depends on temperture. You could still ski to the bottom on both mountains I believe. Everything should be open unless we had relaly bad dry spell.
whistler will probably close around April 21this year while blackcomb will stay open until May long. They used to alternate which mountain closed, but I think with the bike park they always close Whistler first now to dig out the roads/trails.