Striking Winter Warming In Great Lakes, NE, North Plains; Since 1970, MSP 6F Warmer, Fargo 5.9
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.
n parts of Minnesota, Wisconsin, and northern New England winters have warmed at an average rate of more than 1°F per decade since 1970 thats 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.
EDIT
http://www.climatecentral.org/gallery/maps/heres-where-winters-are-warming-the-most