Cooling The Past, Warming The Present
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| Fig.1. Comparison of the GISS web pages. Prior to the year 1969 all values were systematically cooled and after that they were systematically warmed. |
snapshot date 2012.02.01 https://web.archive.org/web/20120201220947/http://data.giss.nasa.gov/gistemp/tabledata_v3/GLB.Ts.txt GLOBAL Temperature Anomalies in 0.01 degrees Celsius base period: 1951-1980 sources: GHCN-v3 1880-12/2011 (meteorological stations only) using elimination of outliers and homogeneity adjustment Notes: 1941 DJF = Dec 1940 - Feb 1941 ; ***** = missing AnnMean Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1880 -54 -26 -33 -49 -21 -35 -22 26 -27 -43 -22 -20 -27**** ***** -34 -10 -31 1880 1881 -51 -28 -10 0 15 -86 -29 -11 -16 -26 -32 12 -22 -25 -33 1 -42 -24 1881 1882 31 7 5 -43 -21 -81 -48 0 8 -14 -21 -46 -18 -14 17 -20 -43 -9 1882 1883 -48 -76 -24 -7 -16 56 20 8 -21 -42 -45 -16 -18 -20 -56 -15 28 -36 1883 1884 -38 -11 -22 -74 -98 -58 -67 30 -20 -64 -62 -79 -47 -42 -22 -65 -32 -49 1884 1885 -73 -60 -73 -66 -34 -78 -46 -2 -2 11 -16 24 -35 -43 -71 -58 -42 -2 1885 1886 -51 -58 -48 -41 -36 -55 -21 -53 -21 -67 -37 -57 -45 -39 -28 -42 -43 -42 1886 1887 -73 -108 -44 -65 -73 -56 -35 -23 -51 -34 -74 -54 -57 -58 -79 -61 -38 -53 1887 1888 -59 -66 -75 -16 -60 -40 -20 -20 -27 -11 6 2 -32 -37 -60 -51 -27 -10 1888 1889 -17 29 20 24 23 -18 -32 -51 -29 -11 -33 -29 -10 -8 5 22 -34 -24 1889 1890 -55 -53 -50 -40 -80 -46 -50 -51 -26 -19 -65 -45 -48 -47 -46 -57 -49 -37 1890 1891 -90 -99 -44 -56 -37 -48 -64 -50 -45 -49 -46 5 -52 -56 -78 -46 -54 -47 1891 1892 -60 -30 -53 -67 -64 -54 -34 -23 -49 -34 -57 -61 -49 -43 -28 -62 -37 -47 1892 1893 -139 -96 -57 -62 -69 -66 -12 -31 -25 -7 -15 -42 -52 -53 -99 -63 -36 -16 1893 1894 -76 -63 -42 -66 -65 -44 -30 -31 -45 -6 -10 -13 -41 -43 -60 -58 -35 -20 1894 1895 -64 -77 -45 -43 -34 -27 -50 -15 -12 -3 -9 -4 -32 -33 -51 -41 -30 -8 1895 1896 -18 -25 -49 -43 -39 -41 -15 -35 -6 2 -40 -15 -27 -26 -16 -44 -30 -15 1896 1897 -17 -40 -25 -7 -21 -15 -2 -25 -14 -16 7 -18 -16 -16 -24 -18 -14 -7 1897 1898 -8 -41 -69 -41 -58 -23 -28 -22 3 -34 -40 -14 -31 -32 -22 -56 -24 -24 1898 1899 -33 -51 -29 -18 -37 -49 -19 -20 8 -20 9 -9 -22 -23 -33 -28 -29 -1 1899 1900 -40 7 -7 -8 -11 -7 -28 -11 -2 25 0 4 -7 -8 -14 -9 -15 8 1900 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1901 -17 2 -1 -4 -12 9 -22 -17 6 -8 -4 -9 -6 -5 -4 -6 -10 -2 1901 1902 -20 8 -8 -8 -20 -27 -31 -41 -30 -37 -40 -45 -25 -22 -7 -12 -33 -35 1902 1903 -24 -3 -7 -43 -35 -54 -22 -33 -36 -40 -36 -53 -32 -32 -24 -29 -36 -37 1903 1904 -71 -65 -43 -34 -58 -37 -50 -40 -37 -45 -15 -27 -43 -46 -63 -45 -42 -32 1904 1905 -31 -86 -15 -24 -24 -25 -34 -15 -15 -27 2 -16 -26 -27 -48 -21 -25 -13 1905 1906 -6 -23 -21 16 -12 -12 -13 -11 -21 -10 -42 -16 -14 -14 -15 -6 -12 -25 1906 1907 -36 -56 -36 -50 -56 -55 -31 -45 -30 -24 -52 -56 -44 -41 -36 -47 -44 -36 1907 1908 -25 -23 -41 -35 -22 -30 -26 -29 -8 -30 -50 -31 -29 -31 -34 -32 -29 -29 1908 1909 -63 -48 -37 -49 -46 -30 -22 0 -11 -8 -6 -43 -30 -29 -47 -44 -17 -8 1909 1910 -32 -24 -30 -18 -12 -20 -7 -2 1 -21 -38 -52 -21 -20 -33 -20 -10 -19 1910 1911 -50 -48 -46 -38 -24 -26 -5 -14 -15 -7 -4 -15 -24 -28 -50 -36 -15 -9 1911 1912 -8 -1 -31 -25 -18 -13 -36 -51 -28 -41 -37 -22 -26 -25 -8 -25 -34 -35 1912 1913 -33 -42 -50 -19 -51 -44 -10 -9 -10 -21 -6 10 -24 -26 -32 -40 -21 -12 1913 1914 23 3 5 -9 9 5 -9 -2 -3 17 -27 -15 0 2 12 2 -2 -4 1914 1915 -11 13 -2 7 -10 -14 14 -8 7 -2 10 -7 0 -1 -4 -2 -3 5 1915 1916 -3 -4 -36 -21 -29 -40 -25 -2 -6 -8 -31 -72 -23 -18 -4 -29 -22 -15 1916 1917 -42 -66 -70 -45 -74 -36 10 -29 -25 -42 -28 -83 -44 -43 -60 -63 -18 -32 1917 1918 -56 -57 -44 -47 -68 -35 -39 -38 -12 10 -17 -25 -36 -41 -65 -53 -37 -6 1918 1919 -16 -15 -7 -5 -9 -11 1 0 -13 2 -36 -23 -11 -11 -18 -7 -3 -16 1919 1920 -5 -21 -17 -12 -29 -29 -10 -10 -11 -37 -27 -39 -21 -19 -16 -19 -16 -25 1920 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1921 5 -12 -6 -9 -14 -2 9 -38 -8 -2 -20 -10 -9 -11 -15 -10 -10 -10 1921 1922 -28 -30 -21 2 -26 -21 5 -16 -5 -17 -3 -6 -14 -14 -23 -15 -11 -8 1922 1923 -16 -15 -14 -39 -23 -21 -41 -31 -26 -5 2 0 -19 -19 -12 -25 -31 -9 1923 1924 -19 -30 -4 -40 -20 -8 -6 -5 -2 -10 -2 -30 -15 -12 -16 -21 -7 -4 1924 1925 -38 -28 -18 -10 -25 -31 -27 -4 -25 -24 7 21 -17 -21 -32 -17 -21 -14 1925 1926 32 41 28 -5 -25 -14 -6 10 11 -3 12 -17 5 8 31 -1 -4 7 1926 1927 -6 -6 -25 -26 -20 -19 4 -19 0 22 19 -16 -8 -8 -10 -24 -11 14 1927 1928 11 5 -3 -3 -32 -47 1 0 2 -1 14 3 -4 -6 0 -13 -15 5 1928 1929 -19 -36 -29 -34 -29 -32 -26 -28 -13 10 5 -51 -24 -19 -18 -31 -29 1 1929 1930 -15 -8 2 -9 -4 -11 -8 -8 -8 -18 20 3 -5 -10 -24 -4 -9 -2 1930 1931 -4 -18 2 -18 -10 -4 17 17 -11 10 -8 17 -1 -2 -6 -8 10 -3 1931 1932 40 -21 -14 16 -8 -34 -12 -12 8 15 -3 -12 -3 -1 12 -2 -20 6 1932 1933 -26 -18 -17 -12 -7 -22 -4 -14 -6 -3 -30 -47 -17 -14 -19 -12 -14 -13 1933 1934 -9 -2 -28 -25 10 -7 10 11 -1 4 16 18 0 -6 -19 -15 4 7 1934 1935 -23 30 10 -38 -25 -12 -17 -17 -35 2 -23 -10 -13 -11 8 -18 -15 -19 1935 1936 -22 -38 -13 0 -22 -10 25 5 -1 3 6 13 -4 -6 -23 -12 7 3 1936 1937 -8 7 -16 -14 3 2 -2 10 25 26 35 1 6 7 4 -9 3 29 1937 1938 6 7 24 30 17 -6 8 -4 12 35 16 -3 12 12 5 24 -1 21 1938 1939 2 -9 -31 -11 4 -4 -8 -22 -10 -8 -11 37 -6 -9 -4 -13 -11 -10 1939 1940 -15 7 12 2 7 16 23 9 17 7 5 23 9 11 10 7 16 10 1940 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1941 7 23 -6 2 12 13 26 7 -19 10 -1 5 7 8 18 2 16 -3 1941 1942 26 1 0 2 4 8 4 8 5 1 15 7 7 7 11 2 7 7 1942 1943 -18 7 -13 3 -6 -9 12 -17 5 29 9 21 2 1 -1 -5 -5 14 1943 1944 33 14 12 -8 -6 -11 3 6 19 20 4 -13 6 9 23 -1 -1 14 1944 1945 7 -8 1 13 -16 -26 -18 22 7 8 -1 -31 -3 -2 -5 0 -8 5 1945 1946 4 0 -12 8 5 -12 6 -7 2 -17 -5 -27 -4 -5 -9 0 -4 -7 1946 1947 -6 8 21 15 2 -1 4 5 2 26 23 -10 8 6 -8 13 3 17 1947 1948 21 -13 -24 -9 5 10 -14 -16 -2 1 -14 -12 -6 -5 -1 -9 -7 -5 1948 1949 6 -30 -5 -22 -14 -20 -7 -13 -4 3 -5 -11 -10 -10 -12 -14 -13 -2 1949 1950 -26 -30 -8 -22 -21 -11 -10 -33 -17 -19 -34 -14 -20 -20 -22 -17 -18 -23 1950 1951 -34 -44 -13 -3 9 -10 -8 12 2 7 5 17 -5 -8 -31 -2 -2 5 1951 1952 12 14 -14 -4 -10 -8 7 12 14 -1 -19 -3 0 2 14 -10 4 -2 1952 1953 13 8 17 12 0 5 -1 13 9 6 5 19 9 7 6 10 6 7 1953 1954 -27 -7 -11 -12 -19 -19 -25 -17 -17 3 21 -8 -11 -9 -5 -14 -20 2 1954 1955 23 -8 -35 -16 -14 -15 -13 14 -12 3 -24 -26 -10 -9 2 -22 -5 -11 1955 1956 -23 -30 -32 -25 -27 -10 -11 -32 -11 -22 -20 -16 -22 -22 -26 -28 -18 -18 1956 1957 -12 -3 -3 10 7 19 -4 16 12 0 18 19 7 4 -10 5 10 10 1957 1958 40 22 19 11 8 -15 10 -8 -5 10 10 -4 8 10 27 13 -4 5 1958 1959 6 6 23 16 0 9 8 1 -14 -7 -9 10 4 3 3 13 6 -10 1959 1960 7 29 -43 -20 -13 -5 -13 10 5 10 -8 19 -2 -3 15 -25 -3 3 1960 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1961 8 23 4 10 23 10 -1 4 14 15 9 -13 9 12 16 12 5 13 1961 1962 9 20 10 11 -12 11 -13 -8 8 5 11 2 5 3 5 3 -3 8 1962 1963 0 26 -20 -20 -13 0 11 16 25 6 4 -2 3 3 9 -17 9 12 1963 1964 -5 -15 -29 -38 -38 -15 -8 -29 -37 -33 -21 -32 -25 -22 -7 -35 -17 -31 1964 1965 -4 -19 -9 -29 -11 -14 -27 -9 -22 -11 -13 -21 -16 -17 -18 -16 -17 -15 1965 1966 -25 -7 13 -12 -8 -6 11 -11 -4 -25 -5 -7 -7 -8 -17 -2 -2 -11 1966 1967 -7 -27 2 -8 12 -14 7 0 3 16 4 -1 -1 -1 -14 2 -2 8 1967 1968 -19 -16 33 -8 -14 -7 -11 -6 -23 8 -6 -20 -7 -6 -12 4 -8 -7 1968 1969 -15 -25 -12 13 12 10 -6 -8 0 8 9 34 2 -3 -20 4 -1 6 1969 1970 6 30 7 6 -6 9 7 -11 14 8 3 -12 5 9 23 2 2 8 1970 1971 -3 -15 -22 -5 -10 -20 -7 4 2 -2 -13 -7 -8 -9 -10 -12 -8 -5 1971 1972 -32 -33 -11 -9 -3 5 3 17 3 -7 -9 12 -5 -7 -24 -8 8 -5 1972 1973 22 33 36 35 31 27 20 5 10 17 7 -4 20 21 22 34 17 11 1973 1974 -7 -23 -3 -10 0 1 -2 11 -14 -8 -11 -5 -6 -6 -11 -5 3 -11 1974 1975 7 7 15 2 27 2 5 -26 -4 -6 -10 -24 0 1 3 15 -6 -7 1975 1976 -6 -10 -35 -25 -28 -21 -19 -24 -16 -37 -21 -5 -21 -22 -14 -29 -21 -25 1976 1977 11 21 28 30 30 30 26 27 -11 -4 21 11 18 17 9 29 28 2 1977 1978 11 17 25 24 20 3 20 -15 15 2 10 4 11 12 13 23 3 9 1978 1979 13 -12 22 21 1 18 1 11 24 23 27 49 16 13 2 15 10 24 1979 1980 32 38 38 43 45 19 32 29 30 17 26 15 30 33 40 42 26 24 1980 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1981 59 53 63 45 28 34 47 49 22 5 19 44 39 37 42 45 43 15 1981 1982 8 22 -6 -2 21 -2 14 4 4 -2 9 36 9 10 25 4 5 4 1982 1983 47 37 41 36 46 23 17 44 51 27 29 13 34 36 40 41 28 35 1983 1984 21 11 35 12 43 -1 13 21 22 14 5 -2 16 17 15 30 11 14 1984 1985 26 0 21 12 15 22 0 30 18 10 2 10 14 13 8 16 17 10 1985 1986 33 46 33 36 26 11 10 15 0 6 6 14 20 19 29 32 12 4 1986 1987 38 49 20 34 24 48 53 19 29 30 28 52 35 32 34 26 40 29 1987 1988 62 44 54 43 56 54 36 44 46 46 9 29 43 45 53 51 44 33 1988 1989 20 38 40 32 17 14 41 40 47 36 15 31 31 31 29 30 31 33 1989 1990 44 36 79 55 46 39 57 37 21 48 48 40 46 45 37 60 44 39 1990 1991 44 54 42 64 36 62 56 50 52 27 27 27 45 46 46 47 56 35 1991 1992 45 35 48 20 22 25 0 6 -12 -1 -4 18 17 18 36 30 10 -5 1992 1993 33 33 30 25 24 18 28 13 4 16 3 16 20 20 28 26 19 7 1993 1994 35 4 24 48 23 52 33 19 39 31 41 41 32 30 18 32 35 37 1994 1995 53 85 47 54 33 44 59 53 37 63 48 36 51 51 59 44 52 49 1995 1996 37 56 41 39 35 28 50 71 35 28 44 47 43 42 43 38 50 35 1996 1997 43 49 60 34 38 61 27 36 41 49 62 62 47 45 46 44 41 51 1997 1998 67 111 78 76 88 94 82 79 52 62 60 74 77 76 80 81 85 58 1998 1999 61 78 41 36 43 57 53 49 51 51 46 45 51 53 71 40 53 49 1999 2000 24 71 61 68 48 61 55 52 48 26 42 41 50 50 47 59 56 38 2000 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 2001 51 56 59 51 67 54 60 61 62 55 79 66 60 58 50 59 59 66 2001 2002 87 82 107 75 75 55 77 59 68 57 61 46 71 72 78 86 64 62 2002 2003 85 68 65 62 80 56 57 80 73 79 59 79 70 68 67 69 64 70 2003 2004 66 86 80 68 45 58 21 56 55 76 80 61 63 64 77 64 45 70 2004 2005 91 81 87 79 69 73 70 67 86 91 82 84 80 78 77 78 70 86 2005 2006 69 85 75 62 46 69 58 74 64 75 80 86 70 70 79 61 67 73 2006 2007 116 85 84 86 86 58 71 79 75 74 62 63 78 80 96 85 69 70 2007 2008 41 37 82 57 51 42 65 36 71 66 76 67 57 57 47 63 48 71 2008 2009 69 69 60 67 73 75 77 79 85 67 77 70 72 72 68 67 77 76 2009 2010 90 99 107 93 92 80 66 75 78 88 96 62 86 86 87 98 74 87 2010 2011 65 60 70 76 58 66 83 88 74 75 73 71 72 71 63 68 79 74 2011 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year Divide by 100 to get changes in degrees Celsius (deg-C). Multiply that result by 1.8(=9/5) to get changes in degrees Fahrenheit (deg-F). Best estimate for absolute global mean for 1951-1980 is 14.0 deg-C or 57.2 deg-F, so add that to the temperature change if you want to use an absolute scale (this note applies to global annual means only, J-D and D-N !) Example -- Table Value : 40 change : 0.40 deg-C or 0.72 deg-F abs. scale if global annual mean : 14.40 deg-C or 57.92 deg-F
snapshot date 2015.06.29 https://web.archive.org/web/20150629220659/http://data.giss.nasa.gov/gistemp/tabledata_v3/GLB.Ts.txt GLOBAL Temperature Anomalies in 0.01 degrees Celsius base period: 1951-1980 sources: GHCN-v3 1880-05/2015 (meteorological stations only) using elimination of outliers and homogeneity adjustment Notes: 1941 DJF = Dec 1940 - Feb 1941 ; ***** = missing AnnMean Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1880 -82 -40 -46 -65 -36 -47 -46 9 -49 -67 -50 -52 -48 *** **** -49 -28 -55 1880 1881 -75 -60 -34 -26 -3 -112 -51 -24 -32 -48 -57 -12 -45 -48 -62 -21 -62 -45 1881 1882 12 -11 -8 -57 -36 -101 -68 -10 -7 -31 -39 -65 -35 -31 -4 -34 -60 -26 1882 1883 -66 -93 -44 -30 -34 45 1 -15 -45 -56 -68 -37 -37 -39 -75 -36 10 -56 1883 1884 -59 -34 -39 -93 -119 -82 -83 16 -36 -78 -82 -98 -66 -60 -43 -84 -50 -65 1884 1885 -92 -78 -91 -86 -49 -93 -60 -16 -15 -4 -38 2 -52 -60 -89 -75 -56 -19 1885 1886 -76 -82 -69 -61 -57 -86 -38 -74 -42 -87 -50 -73 -66 -60 -52 -62 -66 -59 1886 1887 -86 -127 -58 -84 -86 -67 -40 -27 -63 -57 -92 -65 -71 -72 -95 -76 -45 -71 1887 1888 -78 -83 -88 -30 -73 -54 -33 -36 -41 -31 -12 -24 -49 -52 -75 -64 -41 -28 1888 1889 -32 14 4 11 5 -27 -47 -64 -41 -25 -46 -42 -24 -23 -14 7 -46 -38 1889 1890 -59 -64 -64 -56 -95 -59 -62 -62 -36 -30 -78 -53 -60 -59 -55 -72 -61 -48 1890 1891 -98 -106 -55 -69 -51 -59 -75 -60 -53 -58 -55 4 -61 -66 -85 -58 -65 -55 1891 1892 -58 -29 -57 -69 -64 -54 -37 -26 -47 -35 -62 -59 -50 -44 -28 -63 -39 -48 1892 1893 -143 -99 -60 -66 -74 -68 -14 -33 -27 -10 -14 -38 -54 -56 -100 -67 -38 -17 1893 1894 -86 -63 -41 -65 -67 -50 -39 -31 -45 -10 -17 -19 -44 -46 -62 -58 -40 -24 1894 1895 -71 -81 -53 -48 -32 -31 -53 -21 -15 -12 -19 -9 -37 -38 -57 -45 -35 -15 1895 1896 -25 -31 -56 -51 -49 -48 -24 -39 -13 -2 -47 -23 -34 -33 -22 -52 -37 -21 1896 1897 -27 -52 -36 -13 -29 -21 -13 -33 -18 -24 -5 -28 -25 -24 -34 -26 -22 -15 1897 1898 -15 -46 -82 -58 -64 -31 -37 -25 -6 -43 -48 -20 -40 -40 -30 -68 -31 -32 1898 1899 -41 -58 -39 -26 -42 -56 -30 -31 -5 -30 -3 -21 -32 -32 -40 -36 -39 -13 1899 1900 -52 -1 -16 -13 -13 -8 -30 -16 -8 17 -9 -5 -13 -14 -25 -14 -18 0 1900 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1901 -19 -8 -8 -6 -22 2 -24 -20 3 -13 -8 -15 -11 -11 -10 -12 -14 -6 1901 1902 -26 1 -15 -15 -26 -32 -44 -50 -39 -43 -47 -54 -32 -29 -14 -19 -42 -43 1902 1903 -34 -12 -17 -54 -44 -62 -31 -44 -44 -50 -48 -61 -42 -41 -33 -38 -45 -47 1903 1904 -79 -75 -54 -45 -66 -49 -60 -49 -46 -53 -25 -40 -53 -55 -72 -55 -53 -41 1904 1905 -41 -99 -24 -32 -36 -29 -43 -29 -23 -35 -6 -24 -35 -36 -60 -31 -34 -21 1905 1906 -16 -34 -35 5 -20 -22 -23 -19 -31 -21 -54 -25 -24 -24 -25 -17 -21 -35 1906 1907 -49 -65 -46 -62 -60 -66 -42 -57 -39 -32 -61 -67 -54 -50 -46 -56 -55 -44 1907 1908 -35 -30 -51 -45 -31 -41 -36 -37 -16 -41 -60 -40 -39 -41 -44 -42 -38 -39 1908 1909 -77 -58 -49 -62 -61 -44 -36 -12 -21 -19 -16 -53 -42 -41 -59 -57 -31 -19 1909 1910 -45 -37 -44 -29 -25 -35 -21 -12 -8 -29 -51 -64 -33 -32 -45 -33 -23 -29 1910 1911 -64 -63 -60 -52 -38 -37 -15 -24 -25 -17 -13 -24 -36 -39 -64 -50 -26 -18 1911 1912 -19 -13 -43 -29 -19 -27 -48 -62 -34 -46 -43 -31 -34 -34 -19 -30 -46 -41 1912 1913 -41 -47 -57 -30 -62 -59 -22 -18 -19 -28 -13 5 -33 -36 -40 -50 -33 -20 1913 1914 13 -3 -4 -19 -1 -6 -20 -8 -9 11 -34 -21 -8 -6 5 -8 -11 -10 1914 1915 -18 4 -7 -2 -22 -19 5 -18 2 -8 6 -9 -7 -8 -12 -10 -10 0 1915 1916 -7 -10 -41 -28 -34 -45 -33 -10 -16 -14 -38 -79 -30 -24 -9 -34 -29 -23 1916 1917 -51 -73 -80 -53 -80 -44 2 -37 -31 -48 -32 -89 -51 -51 -68 -71 -26 -37 1917 1918 -60 -59 -49 -52 -75 -42 -45 -45 -17 4 -23 -31 -41 -46 -69 -59 -44 -12 1918 1919 -25 -24 -12 -13 -15 -16 -7 -7 -20 -6 -42 -27 -18 -18 -26 -13 -10 -23 1919 1920 -10 -28 -24 -20 -31 -37 -19 -15 -15 -43 -34 -45 -27 -25 -22 -25 -24 -31 1920 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1921 -1 -16 -11 -18 -20 -10 3 -44 -14 -11 -28 -17 -15 -18 -21 -16 -17 -18 1921 1922 -35 -41 -29 -7 -37 -30 -3 -24 -14 -25 -10 -14 -22 -23 -31 -24 -19 -16 1922 1923 -24 -22 -20 -48 -30 -28 -48 -36 -30 -8 -2 -6 -25 -26 -20 -33 -37 -13 1923 1924 -25 -40 -11 -48 -26 -15 -14 -13 -8 -13 -5 -26 -20 -19 -24 -28 -14 -9 1924 1925 -42 -35 -25 -17 -34 -39 -35 -9 -30 -34 -1 17 -24 -27 -34 -26 -27 -22 1925 1926 27 31 21 -9 -35 -21 -15 3 1 -12 3 -25 -3 1 25 -8 -11 -2 1926 1927 -17 -16 -36 -36 -30 -27 -7 -27 -10 14 10 -23 -17 -17 -19 -34 -20 5 1927 1928 6 2 -10 -10 -38 -54 -5 -3 1 -5 8 -5 -9 -11 -5 -19 -21 1 1928 1929 -27 -47 -36 -42 -40 -42 -37 -37 -21 2 -6 -60 -33 -28 -26 -39 -39 -8 1929 1930 -22 -18 -6 -19 -16 -21 -19 -18 -14 -29 10 -5 -15 -19 -33 -14 -19 -11 1930 1931 -13 -27 -5 -28 -18 -8 8 9 -16 6 -14 8 -8 -9 -15 -17 3 -8 1931 1932 34 -27 -21 5 -19 -44 -20 -18 3 8 -10 -16 -11 -9 5 -12 -28 0 1932 1933 -32 -25 -22 -19 -14 -27 -11 -18 -10 -8 -38 -53 -23 -20 -24 -18 -19 -19 1933 1934 -16 -12 -35 -35 0 -17 1 6 -8 -5 5 10 -9 -14 -27 -24 -4 -3 1934 1935 -32 22 3 -48 -34 -21 -25 -22 -40 -5 -32 -16 -21 -19 0 -26 -23 -25 1935 1936 -29 -44 -18 -3 -27 -13 24 3 0 3 4 9 -8 -10 -29 -16 5 2 1936 1937 -9 5 -20 -19 -3 -3 -8 5 23 20 29 -5 1 3 2 -14 -2 24 1937 1938 2 2 20 25 8 -11 2 -7 9 30 11 -11 7 7 0 18 -5 17 1938 1939 -1 -14 -37 -16 -1 -8 -12 -25 -13 -11 -15 34 -10 -14 -9 -18 -15 -13 1939 1940 -19 5 10 0 3 14 19 6 16 3 3 22 7 8 7 4 13 8 1940 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1941 2 20 -12 -1 7 11 26 4 -20 8 -5 3 4 5 15 -2 14 -6 1941 1942 24 0 -2 -2 2 8 5 9 5 0 11 7 5 5 9 -1 7 5 1942 1943 -19 5 -15 2 -10 -11 10 -17 5 27 8 19 0 -1 -2 -8 -6 14 1943 1944 33 12 11 -8 -8 -13 1 5 20 20 1 -17 5 8 21 -1 -2 13 1944 1945 2 -12 -2 12 -27 -31 -23 19 4 3 -7 -34 -8 -7 -9 -6 -12 0 1945 1946 4 -3 -16 4 1 -15 5 -9 0 -17 -6 -27 -7 -7 -11 -4 -6 -8 1946 1947 -7 9 22 14 0 -4 3 2 2 25 22 -13 6 5 -8 12 0 16 1947 1948 21 -16 -29 -12 0 6 -16 -18 -3 -3 -18 -17 -9 -8 -3 -14 -9 -8 1948 1949 5 -35 -8 -25 -19 -23 -10 -14 -7 0 -6 -13 -13 -13 -15 -18 -16 -4 1949 1950 -28 -34 -10 -25 -24 -14 -13 -34 -18 -20 -39 -17 -23 -23 -25 -19 -20 -26 1950 1951 -38 -47 -16 -6 6 -12 -11 10 0 4 0 14 -8 -11 -34 -6 -5 2 1951 1952 10 12 -17 -7 -14 -11 4 8 12 -3 -21 -4 -3 -1 12 -13 0 -4 1952 1953 10 6 14 9 -4 1 -4 10 7 5 1 15 6 4 4 7 2 4 1953 1954 -29 -9 -12 -15 -21 -21 -27 -17 -17 1 18 -10 -13 -11 -8 -16 -22 0 1954 1955 24 -10 -37 -17 -15 -17 -13 14 -12 2 -25 -29 -11 -10 1 -23 -6 -12 1955 1956 -23 -30 -33 -25 -27 -10 -10 -32 -11 -23 -22 -19 -22 -23 -27 -28 -18 -18 1956 1957 -13 -5 -8 4 0 11 -13 14 13 -1 13 19 3 0 -12 -1 4 8 1957 1958 40 24 18 10 11 -19 5 -12 -9 9 8 -7 6 9 27 13 -8 2 1958 1959 3 7 24 19 -1 9 8 0 -13 -9 -10 10 4 3 1 14 6 -11 1959 1960 6 25 -47 -22 -15 -2 -12 8 6 12 -10 18 -3 -3 14 -28 -2 3 1960 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1961 8 22 2 12 18 9 -1 4 15 9 7 -15 8 10 16 11 4 10 1961 1962 6 16 9 6 -11 5 -13 -9 0 0 8 -1 1 0 2 1 -5 3 1962 1963 -2 22 -24 -20 -15 2 6 15 22 8 5 -6 1 1 6 -20 8 11 1963 1964 -7 -17 -30 -38 -35 -15 -7 -32 -37 -34 -21 -33 -26 -23 -10 -34 -18 -31 1964 1965 -5 -18 -12 -28 -15 -16 -24 -8 -25 -10 -13 -20 -16 -17 -19 -18 -16 -16 1965 1966 -24 -4 13 -10 -8 -3 11 -12 -3 -27 -6 -7 -7 -8 -16 -2 -1 -12 1966 1967 -8 -25 2 -10 15 -11 5 4 -1 12 3 0 -1 -2 -13 2 -1 5 1967 1968 -19 -16 34 -8 -18 -10 -12 -8 -28 5 -8 -21 -9 -7 -12 2 -10 -10 1968 1969 -17 -26 -10 11 13 3 -4 -10 1 7 8 33 1 -4 -21 5 -3 5 1969 1970 4 27 10 11 -6 13 7 -7 15 10 3 -12 6 10 21 5 4 9 1970 1971 -3 -16 -22 -7 -7 -22 -10 3 3 -2 -12 -8 -8 -9 -10 -12 -10 -3 1971 1972 -32 -31 -6 -7 -1 8 4 20 5 -5 -7 14 -3 -5 -23 -5 11 -2 1972 1973 25 32 36 36 34 29 23 7 12 21 10 -2 22 23 23 35 19 14 1973 1974 -5 -22 0 -7 4 3 -1 14 -14 -6 -6 -3 -4 -3 -10 -1 6 -9 1974 1975 8 11 16 5 29 7 7 -24 0 -4 -6 -21 2 4 5 17 -3 -3 1975 1976 -1 -7 -30 -22 -25 -17 -15 -22 -15 -36 -17 -2 -17 -19 -10 -25 -18 -23 1976 1977 13 24 31 32 31 34 31 31 -8 0 25 15 22 20 12 31 32 6 1977 1978 14 19 29 27 23 7 23 -13 19 7 17 10 15 15 16 26 5 14 1978 1979 18 -9 25 21 8 22 4 13 29 28 31 53 20 17 6 18 13 29 1979 1980 36 45 42 46 48 23 37 32 34 23 29 18 34 37 45 45 31 29 1980 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 1981 62 58 67 50 32 39 52 53 28 11 24 48 44 41 46 50 48 21 1981 1982 12 26 -2 3 25 5 19 9 10 3 12 41 14 14 29 9 11 8 1982 1983 53 41 47 40 50 28 21 49 56 31 34 17 39 41 45 46 33 40 1983 1984 26 17 39 17 49 6 20 28 27 23 11 3 22 23 20 35 18 21 1984 1985 32 6 27 20 23 29 7 36 26 16 10 17 21 20 14 23 24 18 1985 1986 39 51 39 43 33 16 16 21 3 13 12 20 26 25 36 38 18 9 1986 1987 44 54 26 40 30 55 61 26 36 35 31 56 41 38 40 32 47 34 1987 1988 67 49 57 50 62 59 44 55 55 53 16 37 50 52 57 56 53 41 1988 1989 28 45 46 42 22 19 47 50 53 44 21 38 38 38 36 37 39 40 1989 1990 52 43 87 62 52 47 63 42 30 52 53 47 52 52 44 67 51 45 1990 1991 49 61 47 70 43 68 62 55 61 33 32 33 51 52 52 53 62 42 1991 1992 50 42 54 24 26 29 7 13 -6 7 3 25 23 23 42 34 16 1 1992 1993 39 41 35 31 28 26 39 21 10 22 8 21 27 27 35 31 28 14 1993 1994 40 7 27 52 27 57 39 24 45 41 51 43 38 36 23 35 40 46 1994 1995 57 90 52 60 40 51 65 59 46 68 54 41 57 57 63 51 58 56 1995 1996 42 61 46 49 35 35 56 78 41 33 50 54 48 47 48 43 56 41 1996 1997 49 56 66 40 44 67 36 45 50 61 71 69 55 53 53 50 49 61 1997 1998 72 120 84 84 95 104 91 86 60 69 66 80 84 83 87 88 94 65 1998 1999 69 88 49 43 50 62 63 55 65 64 59 54 60 62 79 47 60 63 1999 2000 32 81 72 77 57 70 65 61 59 35 49 49 59 59 56 68 65 48 2000 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year 2001 60 65 71 62 74 67 71 66 72 62 85 74 69 67 58 69 68 73 2001 2002 97 91 113 81 87 66 84 70 82 65 70 55 80 82 88 94 73 72 2002 2003 93 75 73 69 87 64 64 87 82 89 67 87 78 75 74 76 71 79 2003 2004 72 93 88 78 50 65 27 59 61 85 89 69 70 71 84 72 50 78 2004 2005 99 90 95 85 76 82 81 75 97 100 91 90 89 87 86 85 79 96 2005 2006 75 93 82 68 52 78 68 82 73 84 87 93 78 78 86 67 76 81 2006 2007 123 93 91 94 94 67 78 86 84 81 70 71 86 88 103 93 77 78 2007 2008 50 46 90 66 58 52 72 41 80 73 80 73 65 65 55 71 55 78 2008 2009 75 76 66 75 80 82 85 87 90 73 85 77 79 79 75 74 85 82 2009 2010 95 106 113 100 97 87 75 84 87 96 101 70 92 93 93 103 82 95 2010 2011 73 67 78 84 65 74 92 96 79 85 78 79 79 78 70 75 87 81 2011 2012 62 58 71 81 96 72 58 87 88 95 94 72 78 78 66 82 72 92 2012 2013 98 79 89 68 69 89 68 78 101 87 89 84 83 82 83 75 78 92 2013 2014 97 64 80 91 105 79 74 85 108 103 82 100 89 88 82 92 79 97 2014 2015 97 109 113 84 87 **** **** **** **** **** **** **** **** *** 102 95 **** **** 2015 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec J-D D-N DJF MAM JJA SON Year Divide by 100 to get changes in degrees Celsius (deg-C). Multiply that result by 1.8(=9/5) to get changes in degrees Fahrenheit (deg-F). Best estimate for absolute global mean for 1951-1980 is 14.0 deg-C or 57.2 deg-F, so add that to the temperature change if you want to use an absolute scale (this note applies to global annual means only, J-D and D-N !) Example -- Table Value : 40 change : 0.40 deg-C or 0.72 deg-F abs. scale if global annual mean : 14.40 deg-C or 57.92 deg-F
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