Contiguous 48 U.S. Surface Air Temperature Anomaly (C) ------------------------------------------------------ year Annual_Mean 5-year_Mean --------------------------------- 1880 -0.4900 * 1881 0.0350 * 1882 -0.0370 -0.3986 1883 -0.8770 -0.4444 1884 -0.6240 -0.5712 1885 -0.7190 -0.6358 1886 -0.5990 -0.5870 1887 -0.3600 -0.4474 1888 -0.6330 -0.3112 1889 0.0740 -0.2708 1890 -0.0380 -0.3342 1891 -0.3970 -0.3526 1892 -0.6770 -0.3496 1893 -0.7250 -0.4794 1894 0.0890 -0.3646 1895 -0.6870 -0.2518 1896 0.1770 -0.1420 1897 -0.1130 -0.2400 1898 -0.1760 0.0106 1899 -0.4010 -0.0104 1900 0.5660 0.0024 1901 0.0720 -0.0796 1902 -0.0490 -0.0736 1903 -0.5860 -0.2740 1904 -0.3710 -0.2926 1905 -0.4360 -0.3200 1906 -0.0210 -0.1764 1907 -0.1860 -0.1480 1908 0.1320 0.0052 1909 -0.2290 0.0330 1910 0.3300 -0.1082 1911 0.1180 -0.1640 1912 -0.8920 -0.1180 1913 -0.1470 -0.2244 1914 0.0010 -0.3582 1915 -0.2020 -0.3828 1916 -0.5510 -0.3526 1917 -1.0150 -0.3858 1918 0.0040 -0.4350 1919 -0.1650 -0.1086 1920 -0.4480 0.1160 1921 1.0810 0.0918 1922 0.1080 -0.0188 1923 -0.1170 0.1388 1924 -0.7180 -0.0756 1925 0.3400 -0.0678 1926 0.0090 -0.0388 1927 0.1470 -0.0088 1928 0.0280 -0.0612 1929 -0.5680 0.1300 1930 0.0780 0.0888 1931 0.9650 0.2082 1932 -0.0590 0.5608 1933 0.6250 0.5462 1934 1.1950 0.3798 1935 0.0050 0.3588 1936 0.1330 0.3838 1937 -0.1640 0.2992 1938 0.7500 0.2986 1939 0.7720 0.3706 1940 0.0020 0.4048 1941 0.4930 0.2778 1942 0.0070 0.1286 1943 0.1150 0.1162 1944 0.0260 0.1424 1945 -0.0600 0.1496 1946 0.6240 0.1062 1947 0.0430 0.1326 1948 -0.1020 0.0970 1949 0.1580 -0.1070 1950 -0.2380 -0.0616 1951 -0.3960 0.1306 1952 0.2700 0.2610 1953 0.8590 0.2962 1954 0.8100 0.4270 1955 -0.0620 0.3978 1956 0.2580 0.2360 1957 0.1240 0.1024 1958 0.0500 0.0688 1959 0.1420 0.0152 1960 -0.2300 -0.0126 1961 -0.0100 0.0136 1962 -0.0150 -0.0364 1963 0.1810 -0.0160 1964 -0.1080 -0.0594 1965 -0.1280 -0.0736 1966 -0.2270 -0.1694 1967 -0.0860 -0.1882 1968 -0.2980 -0.1892 1969 -0.2020 -0.1646 1970 -0.1330 -0.2092 1971 -0.1040 -0.1014 1972 -0.3090 -0.0218 1973 0.2410 -0.0334 1974 0.1960 -0.0612 1975 -0.1910 0.0756 1976 -0.2430 -0.0666 1977 0.3750 -0.2156 1978 -0.4700 -0.1262 1979 -0.5490 0.0564 1980 0.2560 -0.0810 1981 0.6700 0.0138 1982 -0.3120 0.1330 1983 0.0040 0.0100 1984 0.0470 0.0284 1985 -0.3590 0.2522 1986 0.7620 0.3280 1987 0.8070 0.3028 1988 0.3830 0.5584 1989 -0.0790 0.5482 1990 0.9190 0.4598 1991 0.7110 0.3122 1992 0.3650 0.4382 1993 -0.3550 0.3406 1994 0.5510 0.1870 1995 0.4310 0.1430 1996 -0.0570 0.4774 1997 0.1450 0.5806 1998 1.3170 0.6326 1999 1.0670 0.8280 2000 0.6910 0.9334 2001 0.9200 0.8066 2002 0.6720 0.7138 2003 0.6830 0.7580 2004 0.6030 0.8320 2005 0.9120 0.8702 2006 1.2900 0.7532 2007 0.8630 0.6602 2008 0.0980 0.5832 2009 0.1380 * 2010 0.5270 *