October was much less snowy than it should have been in the Continental United States. Here's a map I made of normal October snowfall (colors) vs. October 2010 snowfall, as reported by the official climate stations in AccuWeather's database. As you can see, the coverage of non-zero reports is much smaller than it should have been.
Denver had no snow, something that hasn't happened in 88.5% of previous years of record. Flakes haven't been seen at all in most of the country. I'm not sure how much snow Montreal, Quebec, Canada normally has by now but I bet it's a lot more than the 1.2" they got at the end of October.
Tragedy struck on the day before Christmas Eve this year when four people were killed by a tornado in Mississippi. Tornadoes also struck Georgia, Louisiana and (on Christmas Eve day) the Carolinas.
There are a number of holiday (Black Friday, Cyber Monday, Holiday) sales happening this season with gadgets that can help you observe the weather.
Siberia has fallen to -66 degrees as the cold air pool grows and throws off a storm to soak Japan with 2 feet of rain and even more snow.
This week's powerful California storm has now brought a report of a tornado in southern L.A. this morning, and additional reports of waterspouts this afternoon
A very deep storm in the North Atlantic, not far from a strong high pressure system, will cause incredible wave heights midweek.
Super Typhoon Hagupit is approaching the Philippines today, threatening to make landfall near the same area that Super Typhoon Haiyan did in 2013.