A partially frozen Niagara Falls during sub-freezing temperatures in Niagara Falls, Ontario, on March 3.
People walk along 5th Avenue in Central Park as it snows in New York on Feb. 13. A deadly winter storm moved north along the East Coast of the United States, bringing heavy snow, sleet and rain across the Washington, D.C., and New York areas, grounding flights and shutting government offices.
Gail Davis' breath forms ice around her face as she walks outside in Minneapolis on Jan. 8. A deadly blast of arctic air shattered decades-old temperature records as it enveloped the eastern United States, snarling air, road and rail travel, driving energy prices higher and overwhelming shelters for homeless people.
A normally busy Freedom Parkway sits empty in front of the Atlanta skyline on Feb. 12. Public schools were closed and hazardous road conditions kept most people home. A state of emergency was declared in 45 Georgia counties as sleet, freezing rain and snow fell across the state.
Gillian Merritt, Lucy Roehrs, and Matt Roehrs sled down a hill on College Avenue in Anderson, S.C. on Feb. 12. A storm dropped several inches of snow and ice across the state, closing schools, government offices and businesses.
A lone highway sign stands above the closed Richardson Highway, near Valdez, Ala. on Jan. 25. Two major avalanches dumped snow along 27 miles of the Richardson Highway, closing the only road access to Valdez.
A woman walks outside of an office building as snow falls on Jan. 21 in Baltimore. Thousands of flights were canceled, students got an extra day off from school or were sent home early, and the federal government closed its offices in the Washington area as another winter storm bore down on the Mid-Atlantic and Northeast.
Northern Virginia is blanketed with snow as seen from Air Force One as it flies to California on Feb. 14.
Sunlight streams through the windows of a building frozen from water after catching fire in Plattsmouth, Neb., on Jan. 3.
Children make a snow pile in Times Square, during a snowstorm on Jan. 2 in New York.
The sun illuminates windblown snow as a man walks under elevated train tracks, on Jan. 22 in Philadelphia. A winter storm stretched from Kentucky to New England and hit hardest along the heavily populated Interstate 95 corridor between Philadelphia and Boston.
A Coast Guard helicopter flies along the Hudson River, which is full of ice floes, on Jan. 9 in New York. A recent cold spell, caused by a polar vortex descending from the Arctic, caused large ice floes to form in the Hudson, delaying ferry traffic.
Student tourists from Chattanooga, Tenn., have a snowball fight outside the National Mall on Jan. 21 in Washington, D.C.
Pilot Hank Cain captured this image of a frozen Chicago while flying from Washington D.C. to the Windy City on Jan. 7.