Take a look at how winters have been warming across the continental U.S. from 1970 to 2013.
A graphical look at how winter precipitation has been trending across the U.S. from 1970 to 2013.
All regions of the continental U.S. have seen the frost-free season, defined as the stretch between the last below-32°F reading in the spring and the first in the fall, grow longer.
The big picture is clear: Overall, fall is warming across the U.S, 0.46F per decade since 1970.
Fall precipitation has changed since the early 1970s, but unlike fall temperatures, the changes form more of a patchwork story.
The hottest time of year in the continental U.S. statistically comes in mid-July, but the timing of peak heat varies across different parts of the country.
When it comes to summertime precip., the wet are getting wetter and the dry are getting drier.
Since 1900, the average annual precipitation is up 5 percent for the continental U.S.