Yeah, with my new grapes being planted this year, some as late as October, I was hoping for somewhat of a normal winter for them, but this stuff, this early can't be good. If the snow would stay to insulate them, I'd be OK with that, but we are supposed to get in the mid-40's for a couple of days and then snow and freezing rain for the weekend.
Last year, I gambled and planted some grapes in Oct and they came out fine this spring. I put some soil around the plants and mulched the rows and of course it was not too bad of a winter. I thought that I'd gamble again this year when I found some marked down grape plants on sale at Lowe's, so it will be interesting to see if they come out in the spring.
You can keep those temperatures out in Wyoming, or to my surprise New York! Darn global warming!