The big picture is clear: Overall, fall is warming across the U.S, 0.46F per decade since 1970.
Nationwide, spring has been getting warmer at a rate of 0.45°F per decade since 1970.
While every region of the country has seen a rise in winter temperatures since 1970, precipitation trends paint a more varied picture.
Since 1970, winters in the continental U.S. have warmed by 0.61°F per decade on average.
Striking photos from recent flooding of the Mississippi and Ohio Rivers.