
Image caption
(top) U.S.temperatures in June 2021 compared to the 1981-2010 average, with warmer-than-average areas in red, and cooler-than-average areas in blue. (bottom) U.S. June temperatures compared to the 20th-century average from 1895 to 2021. NOAA Climate.gov image, based on data from NOAA National Centers for Environmental Information.