In 2020, the average annual global surface temperature was 1.02 degrees C (1.84 F) above the baseline average of 1951-1980 temperatures. Nineteen of the hottest years on record have occurred since 2000.

Source: “Global Temperature,” National Aeronautics and Space Administration, accessed Nov. 3, 2021, https://tinyurl.com/3d8yje7c

Data for the graphic are as follows:

Year Temperature Change in Celsius
1880 −0.16
1881 −0.07
1882 −0.10
1883 −0.17
1884 −0.28
1885 −0.33
1886 −0.31
1887 −0.36
1888 −0.17
1889 −0.10
1890 −0.35
1891 −0.22
1892 −0.27
1893 −0.31
1894 −0.30
1895 −0.22
1896 −0.11
1897 −0.11
1898 −0.27
1899 −0.17
1900 −0.08
1901 −0.15
1902 −0.27
1903 −0.37
1904 −0.46
1905 −0.26
1906 −0.22
1907 −0.38
1908 −0.43
1909 −0.48
1910 −0.43
1911 −0.44
1912 −0.36
1913 −0.34
1914 −0.15
1915 −0.14
1916 −0.36
1917 −0.46
1918 −0.29
1919 −0.28
1920 −0.27
1921 −0.19
1922 −0.28
1923 −0.27
1924 −0.27
1925 −0.22
1926 −0.11
1927 −0.22
1928 −0.20
1929 −0.36
1930 −0.16
1931 −0.09
1932 −0.16
1933 −0.29
1934 −0.12
1935 −0.20
1936 −0.15
1937 −0.02
1938 0.00
1939 −0.02
1940 0.13
1941 0.19
1942 0.07
1943 0.09
1944 0.20
1945 0.09
1946 −0.07
1947 −0.03
1948 −0.11
1949 −0.11
1950 −0.17
1951 −0.07
1952 0.01
1953 0.08
1954 −0.13
1955 −0.14
1956 −0.19
1957 0.05
1958 0.06
1959 0.03
1960 −0.03
1961 0.06
1962 0.03
1963 0.05
1964 −0.20
1965 −0.11
1966 −0.06
1967 −0.02
1968 −0.08
1969 0.05
1970 0.03
1971 −0.08
1972 0.01
1973 0.16
1974 −0.07
1975 −0.01
1976 −0.10
1977 0.18
1978 0.07
1979 0.17
1980 0.26
1981 0.32
1982 0.14
1983 0.31
1984 0.16
1985 0.12
1986 0.18
1987 0.32
1988 0.39
1989 0.27
1990 0.45
1991 0.40
1992 0.22
1993 0.23
1994 0.32
1995 0.45
1996 0.33
1997 0.46
1998 0.61
1999 0.38
2000 0.39
2001 0.54
2002 0.63
2003 0.62
2004 0.54
2005 0.68
2006 0.64
2007 0.66
2008 0.54
2009 0.66
2010 0.72
2011 0.61
2012 0.65
2013 0.68
2014 0.75
2015 0.90
2016 1.01
2017 0.92
2018 0.85
2019 0.98
2020 1.02

close window