This
linked article was the surprising one to me.
Their Methodology includes "The Washington Post used the
National Oceanic and Atmospheric Administration's Climate Divisional Database (nClimDiv), which provides monthly temperature data at the national, state and county level between 1895 and 2018 for the Lower 48 states."
I remember hearing that Carson City was most affected by warming temperatures, but maybe that's old news.
Article from March 2021 says "The Carson City news was so shocking that NBC picked it up and broadcast it nationally: an analysis by the
Associated Press, using 30 years of federal records, named Carson City as the fastest warming city in the United States. Two years later, in 2016, Reno was named the fastest warming city in America. "
Article from July 2022 includes "Since 1970, summer temperatures in Reno, Nevada, have risen 10.9 degrees, making it the nation’s fastest-warming city,
according to Climate Central, a nonprofit research group.
Ranked second is Las Vegas, Nevada, which has seen an increase of 5.8 degrees. Boise, Idaho, follows in third at 5.6 degrees."