Winters are warming quickly across much of the Lower 48 states, including Georgia, particularly during the past three decades. This is tied to human-caused climate change.
Why it matters: Warming during meteorological winter, which runs from December through February, affects winter sports, recreation and water supplies and can even alter a region's cultural identity over time.
By the numbers: According to an analysis from the research group Climate Central, Atlanta's average winter temperature has increased six degrees since 1970.
Last winter, the metro saw a total of 57 days with above normal temperatures. That's an increase of about 19 days compared to in 1970.
Zoom out: States known for their cold weather have seen some of the fastest warming rates.
This includes counties in Minnesota, Wisconsin, New York, Vermont and Maine, the research shows.