It has been quite cold over much of Eurasia in the past few weeks. At the same time, it has been quite mild over the opposite side of the North Pole, that would be North America. With the cold air has come a very rapid buildup of snow cover over Russia that increases the intensity of that cold air. All it would take is a shift in the upper level wind and that cold air would move up and over the arctic and into the United States. There are other examples of a mild first half of November quickly shifting to a much colder pattern toward the end of the month. We all know the cold air will come eventually, but at the moment that Siberia cold is staying away through at least early next week, but I would not be surprised at all if below average temperatures greet us toward the end of the month.