The big picture is clear: Overall, fall is warming across the U.S, 0.46F 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.
Satellite-derived images comparing the first full week of April in years with early (2002) vs. late (2008) snowmelt.
The August 2006 Tripod Complex Fire burned some 180,000 acres of beetle-damaged forest in central Washington State.