Contiguous U.S. June - August Maximum Temperature Anomaly (degrees F)
Date,ClimDiv,USCRN
1895,-1.77,-99.99
1896,-0.12,-99.99
1897,-1.07,-99.99
1898,-0.43,-99.99
1899,-0.82,-99.99
1900,0.17,-99.99
1901,0.83,-99.99
1902,-1.48,-99.99
1903,-2.89,-99.99
1904,-2.46,-99.99
1905,-1.57,-99.99
1906,-1.94,-99.99
1907,-2.68,-99.99
1908,-1.96,-99.99
1909,-0.75,-99.99
1910,-0.33,-99.99
1911,-0.31,-99.99
1912,-2.79,-99.99
1913,-0.3,-99.99
1914,-0.35,-99.99
1915,-3.38,-99.99
1916,-1.33,-99.99
1917,-0.58,-99.99
1918,0.41,-99.99
1919,0.2,-99.99
1920,-1.87,-99.99
1921,0.2,-99.99
1922,0.17,-99.99
1923,-1.43,-99.99
1924,-0.63,-99.99
1925,0.03,-99.99
1926,-0.43,-99.99
1927,-2.51,-99.99
1928,-2.02,-99.99
1929,-0.29,-99.99
1930,0.92,-99.99
1931,1.32,-99.99
1932,0.09,-99.99
1933,1.54,-99.99
1934,2.3,-99.99
1935,-0.02,-99.99
1936,2.92,-99.99
1937,0.84,-99.99
1938,0.16,-99.99
1939,0.51,-99.99
1940,0.26,-99.99
1941,-1.17,-99.99
1942,-0.95,-99.99
1943,0.25,-99.99
1944,-0.65,-99.99
1945,-1.8,-99.99
1946,-0.69,-99.99
1947,-0.81,-99.99
1948,-0.55,-99.99
1949,-0.1,-99.99
1950,-2.23,-99.99
1951,-1.31,-99.99
1952,1.01,-99.99
1953,0.47,-99.99
1954,0.49,-99.99
1955,-0.38,-99.99
1956,0.15,-99.99
1957,-0.56,-99.99
1958,-0.92,-99.99
1959,0.36,-99.99
1960,0.05,-99.99
1961,-0.05,-99.99
1962,-1.13,-99.99
1963,-0.62,-99.99
1964,-0.93,-99.99
1965,-2.25,-99.99
1966,-0.61,-99.99
1967,-1.86,-99.99
1968,-1.72,-99.99
1969,-0.74,-99.99
1970,0.2,-99.99
1971,-0.7,-99.99
1972,-1.53,-99.99
1973,-0.43,-99.99
1974,-0.78,-99.99
1975,-1.58,-99.99
1976,-1.41,-99.99
1977,0.02,-99.99
1978,-0.39,-99.99
1979,-1.64,-99.99
1980,0.79,-99.99
1981,-0.42,-99.99
1982,-2.08,-99.99
1983,-0.14,-99.99
1984,-0.65,-99.99
1985,-0.85,-99.99
1986,-0.39,-99.99
1987,-0.44,-99.99
1988,1.69,-99.99
1989,-1.26,-99.99
1990,-0.37,-99.99
1991,-0.46,-99.99
1992,-3.29,-99.99
1993,-2.5,-99.99
1994,0.21,-99.99
1995,-0.53,-99.99
1996,-0.29,-99.99
1997,-1.53,-99.99
1998,0.12,-99.99
1999,-0.62,-99.99
2000,0.28,-99.99
2001,0.51,-99.99
2002,1.24,-99.99
2003,0.55,-99.99
2004,-2.28,-99.99
2005,0.31,0.07
2006,1.6,1.3
2007,0.94,0.86
2008,-0.13,-0.27
2009,-1.51,-1.84
2010,0.47,0.34
2011,1.65,1.54
2012,2.18,2.36
2013,-0.07,-0.01
2014,-1.06,-0.9
2015,0.12,0.4
2016,1.21,1.4
2017,0.36,0.51
2018,1.11,1.28
2019,-0.11,0.07
2020,1.44,1.66
2021,1.53,1.85
2022,1.65,1.85
2023,0.72,0.93