Today's temperature--a comfortable 50 degrees--is warm enough that our winter crop of broccoli continues to do pretty well, and the grass is staying nice and green. I wouldn't mind some colder temperatures (accompanied by snow, of course!), but I have to say that I have gotten used to the mild winters we have here in the Northwest.
As a side note, I've mentioned before that we are kind of novice gardeners. I had never really thought about growing vegetables in the winter until I read an article about it in the paper. We have yet to see if it will be a success, but it's been interesting at least to give it a try.