Things will begin to change for the month of November as we near the winter. October was 1 or 2C warmer than the norm with a wide array of weather. No real snowfall has come in most areas as predicted and any that did fall melted promptly. The warm fall here on the prairies allowed hail damaged farmland to recover and 2011 boasted a bumper crop over a wide area. I was baffled by the blooming hail battered canola crops in my area in early October!.
One of the oddest weeks in weather was the last week of the month. While generally snow free and warm on the Canadian prairies this was not the case in much warmer climates. Colorado, Texas, Oklahoma, and all the way up the eastern seaboard it snowed causing car crashes, airport delays, and massive power outages as the still in leaf trees snap like toothpicks under heavy snow.
November could have the same in store when it comes to snowfall, but the arctic cold may come visit over the next month.
Nov 1-10: Getting quite cold, but little if any snow over most areas not in high elevation.
Nov 10-20: Very cold, nearly -20C in many places, But still no real snow in many areas. The ground will freeze quickly and lakes will have thick ice earlier than usual because of this, could also lead to more water main breaks than normal.
Nov 20-30: Warming up, Freezing rain, showers, and maybe even the odd lightning strike. A higher chance of accumulating wet snowfall due to a moister air mass.