Laurel is in between Baltimore and Washington, close to where I spent the winter in Columbia. During the 1930s, they averaged 7.8 days per year over 95 degrees. By contrast, since the year 2000 they have only averaged 5.7 days per year over 95 degrees.
All but three of their thirty hottest days occurred below 350 ppm CO2.
Jason Samenow at the Washington Post came up with all kinds of meaningless statistics to prove global warming in DC, but he hid the only ones which really matter.