It may be spring somewhere....just not here in NE MN.....it will be a couple of weeks, say 12 or so, before anyone goes paddling in canoe country's south side....north of the border I would give it 15. Silver Lake in Virginia MN is beginning to open back up......problem is though it "normally" never freezes (due to the PUC plant) if that gives you a hint as to how cold it has been. Ice fishing for opener, open shorelines by Memorial Day, 55 degree water temps by mid-June.......I hope I am wrong