One of those measurements from March 2009 was mine and we definitely did have a foot of snow here but it was on March 1st and since February only has 28 days it sometimes makes me wonder if that should really be counted as a March event. It was all snow at least. The other one was not. One of the big problems with late season events is that as rates lessen, you get a mixture of precip, even if the temps are below freezing. You need a hard hitting multihour band of 2 inches per hour for like 6 hours to get a big snowstorm here in March and April. Also, I agree with people who said that the temps need to be in the 20s, we've had that for all of our big late season events....can't be around 32 or even just under.