Digitized (reconstructed) from Fig. 6 of http://pubs.giss.nasa.gov/docs/1999/1999_Hansen_etal_1.pdf (high resolution version of http://www.giss.nasa.gov/research/briefs/hansen_07/fig1x.gif) using http://arohatgi.info/WebPlotDigitizer/ ver. 2.6 as http://www.burtonsys.com/climate/fig1x_1999_highres_fig6_from_paper_digitized.png by Dave Burton 12/22/2013 The 5-year mean values for 1880 & 1881 are eyeballed from the graph; the rest are calculated. For a version in which the values have not been rounded to two significant digits, see: http://www.burtonsys.com/climate/FigD_1999_digitized_hires_v2.xls Contiguous 48 U.S. Surface Air Temperature Anomaly (C) ------------------------------------------------------ year Annual_Mean 5-year_Mean --------------------------------- 1880 -.37 .1 1881 -.33 -.3 1882 .17 -.39 1883 -.85 -.51 1884 -.58 -.47 1885 -.93 -.57 1886 -.17 -.53 1887 -.30 -.43 1888 -.67 -.18 1889 -.08 -.21 1890 .33 -.21 1891 -.31 -.27 1892 -.33 -.23 1893 -.93 -.42 1894 .09 -.36 1895 -.59 -.27 1896 -.02 -.10 1897 .11 -.23 1898 -.10 -.04 1899 -.58 .01 1900 .40 -.04 1901 .20 -.15 1902 -.12 -.14 1903 -.64 -.30 1904 -.55 -.37 1905 -.42 -.39 1906 -.12 -.21 1907 -.22 -.08 1908 .24 .01 1909 .12 .06 1910 .02 -.07 1911 .13 -.13 1912 -.87 -.07 1913 -.04 -.16 1914 .42 -.25 1915 -.43 -.28 1916 -.32 -.32 1917 -1.06 -.35 1918 -.23 -.39 1919 .25 -.10 1920 -.58 .17 1921 1.11 .19 1922 .31 .09 1923 -.16 .24 1924 -.24 .05 1925 .16 .05 1926 .16 .06 1927 .33 .01 1928 -.10 .04 1929 -.52 .20 1930 .32 .20 1931 .96 .31 1932 .35 .71 1933 .44 .68 1934 1.46 .50 1935 .17 .44 1936 .08 .52 1937 .04 .38 1938 .84 .38 1939 .74 .49 1940 .18 .55 1941 .66 .42 1942 .33 .33 1943 .20 .32 1944 .29 .27 1945 .10 .26 1946 .43 .21 1947 .29 .19 1948 -.04 .13 1949 .19 -.02 1950 -.23 -.03 1951 -.31 .17 1952 .25 .30 1953 .93 .37 1954 .86 .45 1955 .12 .43 1956 .09 .31 1957 .13 .14 1958 .35 .13 1959 .00 .11 1960 .07 .07 1961 .01 .09 1962 -.10 .03 1963 .45 -.05 1964 -.26 -.06 1965 -.32 -.06 1966 -.09 -.19 1967 -.10 -.21 1968 -.17 -.18 1969 -.40 -.19 1970 -.14 -.21 1971 -.15 -.16 1972 -.18 -.06 1973 .06 -.08 1974 .09 -.08 1975 -.24 .00 1976 -.12 -.10 1977 .22 -.30 1978 -.44 -.21 1979 -.93 -.06 1980 .21 -.22 1981 .64 -.04 1982 -.57 .03 1983 .43 -.06 1984 -.53 -.12 1985 -.24 .14 1986 .32 .10 1987 .70 .20 1988 .25 .35 1989 -.04 .35 1990 .54 .27 1991 .30 .08 1992 .31 .12 1993 -.72 .07 1994 .18 -.07 1995 .30 -.16 1996 -.39 .17 1997 -.15 * 1998 .92 *