Climate Central found that winter is the fastest warming season for most of the country, in 38 of the 49 states analyzed.
States seeing the fastest winter warming are clustered in the Northeast and the Great Lakes region. The transition seasons of fall and spring are the fastest warming across much of the western United States. In Washington and Oregon, summers are warming most quickly, increasing the risks associated with wildfire season.
Rising temperatures can contribute to a longer allergy season, keep disease-carrying insects active, shift growing seasons and zones, and prolong the wildfire season. And potential winter energy savings from not having to turn up the thermostat are offset by the warmer summer and fall seasons that have increased our demand for cooling.