I think too much is made of the snow mean. One or two members can really screw up the mean. I think count the number of members with measurable snow and you'll get a better picture of what might realistically occur.
I like the fact that there are more members showing snow than not. Of course this is over a 16 day period, so it could be that those members all have one snow solution, all on different days, none of which are reasonable.
I guess you could say that I don't find this product useful at all