Up To 1F/Decade Of Winter Warming Since 1970 In NE, Great Lakes, Northern Plains States
Winters are warming across the U.S., and in some locations, the warming is dramatic. The Northern Plains, Great Lakes, and the Northeast are warming the fastest, while warming is taking place at a slower rate in the western U.S.
In parts of Minnesota, Wisconsin, and northern New England winters have warmed at an average rate of more than 1°F per decade since 1970 — that’s more than 4°F total. The five locations with winter average temperatures warming the most are:
Burlington, Vermont 7.0°F
Mankato, Minnesota 6.0°F
Minneapolis, Minnesota 6.0°F
Fargo, North Dakota 5.9°F
Waterloo, Iowa 5.9°F
Winter is the fastest warming season in most of the country generally from the Front Range of the Rockies to the East Coast. The greatest warming along the northern states emphasizes a general rule of climate change — cold areas and seasons warm faster than areas and seasons that are already warm. But there are a few exceptions. Fall is warming the fastest in the Pacific Northwest, and spring is warming the fastest the Southwest. Summers are the fastest warming season in Texas.
Warming winters may sound nice to some who prefer more moderate temperatures, but milder winters can signal more difficult times for industries that economically depend on cold winters. Tourism and recreation may suffer when mild conditions negatively affect skiing, snowmobiling and ice fishing. In the West, the warmer winters can lead to faster snow melting and less snowpack, which can stress water levels in reservoirs for areas that depend on melting snowpack later in the year for both drinking and agriculture.
EDIT
http://www.climatecentral.org/gallery/maps/heres-where-winters-are-warming-the-most
