Winter Warming

Nov 26, 2019

Winter is warming across the U.S. and it comes with impacts to industries from tourism to agriculture.

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Even though there will still be rounds of cold weather during winter,  and occasional record cold, long-term temperature trends show that winters are warming across the U.S. In fact, for much of the country, winter is the fastest warming season. In the Northeast, for example, winter has warmed three times faster than summer.


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This week’s analysis of average winter temperatures finds that winter in the contiguous U.S. has warmed by an average of nearly 3°F over the past half century. Of the 242 stations analyzed, 79% (190) have warmed by at least 2°F since 1970. Only seven stations have cooled in this time period. The top five cities showing the most winter warming are all in the northern U.S.—led by Burlington, Vt. (6.8°F), Concord, N.H. (5.6°F) and Milwaukee, Wis. (5.5°F).

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Although warmer winters may sound nice to some (especially those living in colder states), they come with consequences. A 2017 study projected that warming could cause winter recreation to shrink by up to 50% by 2050, resulting in tens of millions of forgone visits each year. This would be a significant blow to the local communities who depend on winter tourism dollars. In the 2015-16 season, skiing and snowmobiling alone generated $11.3 billion nationally and supported over 191,000 jobs.

Winter cold isn’t just important for recreation—production of fruits (such as apples, cherries and peaches) contribute $4 billion annually to the U.S. economy and rely on a period of winter chilling. Warmer winters also threaten to interfere with other natural rhythms—allowing crop pests to persist for longer and mistiming animal migration.

Happy Thanksgiving! 

We, here at Climate Central, are thankful for you and your partnership in covering climate change. Here are some previously released Climate Matters to help tell more Thanksgiving stories: 

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METHODOLOGY

Local average winter temperatures (December - February) were calculated from 1970 to 2019 using data from the Applied Climate Information System. National trends are compiled from each NCEI climate division.

Displayed trend lines are based on a mathematical linear regression. Climate Central's local analyses include 244 stations. However, for data summaries based on linear trends, only 242 stations are included due to large data gaps in St. Johnsbury, Vt. and Wheeling, W. Va.

GLOBAL GREENHOUSE GAS UPDATES AND COP25 

In advance of the UN Climate Change Conference, COP 25, The World Meteorological Organization (WMO) is releasing its Greenhouse Gas Bulletin and the United Nations Environment Program (UNEP) is releasing the Emissions Gap Report. Find the reports here

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