Even as much of the United States suffered bouts of punishing cold and record-shattering snowfall, nearly all of Canada basked in relative warmth during the winter of 2009-2010.
Warmth was most exceptional across the far north, where vast tracts of land usually host the nation's most bitter, harsh winter cold.
Temperatures 8 F to 12 F above normal spread over wide swathes of Yukon, Northwest Territories, Nunavut and the sprawling vastness of Labrador and northern Quebec. This was also true as far south as Newfoundland and New Brunswick.
Farther south, there were enough cold outbreaks to hold average temperature departure to about 2 F to 4 F above normal over British Columbia, as well as the eastern Prairies, the populous heart of Ontario and the southern part of Atlantic Canada.
The Vancouver Winter Olympics were plagued by above-normal temperatures in February, with several event delays occurring during the stretch of the games. Men's and women's alpine skiing was postponed several times due to slushy course conditions.
In Toronto, Canada's biggest city, temperature departure for the winter was nearly 2 F above normal. Montreal was warmer than usual by more than 6 F.
A significant stretch of Alberta and Saskatchewan did eke out a normal to slightly colder-than-normal winter, mostly on the strength of a few record-smashing arctic outbreaks in December.
One likely cause for the overall warm bent to the winter was the same as the cause for abnormal cold over the central and southern United States; namely, the frequent occurrence of what forecasters call "blocking highs."
One persistent blocking high set up over eastern Canada and Greenland for much of the winter. It shunted the usual eastward flow of cold air across the continent farther south than usual.
At the same time, it steered mild air off northern seas into much of Canada where arctic air would normally be more dominant.
The coldest air of the winter is gripping much of the eastern United States and will feature single-digit and sub-zero temperatures in the Northeast through the Valentine's Day weekend.
The dangerous cold gripping the eastern United States will set the stage for disruptive snow and ice to unfold from Tennessee and Georgia to Maine Presidents Day into Tuesday.
A multi-vehicle accident involving more than 50 vehicles occurred amid snow showers and brutal cold and led to the shutdown of Interstate 78 in Lebanon County, Pennsylvania, Saturday morning.
Voters heading out to the polls on Saturday, Feb. 20, can expect mild weather and dry conditions for the next step in the 2016 Presidential Election.
Heavy rain will raise the risk of flooding across more than a dozen states in the Southeast on Presidents Day to the East Coast on Tuesday.
Winter's frigid air can bring with it possible plumbing problems, including frozen pipes.
McAllen, TX (2000)
Cape May,NJ (1899)
36" of snow fell in 2nd blizzard of the month.
New England (1940)
Valentine Day blizzard southern New England: 10-18 in. of snow along with gale winds.