Contiguous 48 U.S. Surface Air Temperature Anomaly (C) ------------------------------------------------------ year Annual_Mean 5-year_Mean --------------------------------- 1880 -0.5460 * 1881 -0.0110 * 1882 -0.0860 -0.4446 1883 -0.8920 -0.4840 1884 -0.6880 -0.5954 1885 -0.7430 -0.6386 1886 -0.5680 -0.5816 1887 -0.3020 -0.4276 1888 -0.6070 -0.2790 1889 0.0820 -0.2374 1890 0.0000 -0.3014 1891 -0.3600 -0.3224 1892 -0.6220 -0.3222 1893 -0.7120 -0.4622 1894 0.0830 -0.3556 1895 -0.7000 -0.2534 1896 0.1730 -0.1442 1897 -0.1110 -0.2394 1898 -0.1660 0.0140 1899 -0.3930 -0.0088 1900 0.5670 0.0048 1901 0.0590 -0.0808 1902 -0.0430 -0.0730 1903 -0.5940 -0.2698 1904 -0.3540 -0.2800 1905 -0.4170 -0.3072 1906 0.0080 -0.1580 1907 -0.1790 -0.1288 1908 0.1520 0.0236 1909 -0.2080 0.0502 1910 0.3450 -0.0856 1911 0.1410 -0.1386 1912 -0.8580 -0.0896 1913 -0.1130 -0.1930 1914 0.0370 -0.3232 1915 -0.1720 -0.3484 1916 -0.5100 -0.3196 1917 -0.9840 -0.3560 1918 0.0310 -0.4054 1919 -0.1450 -0.0842 1920 -0.4190 0.1402 1921 1.0960 0.1158 1922 0.1380 0.0074 1923 -0.0910 0.1664 1924 -0.6870 -0.0450 1925 0.3760 -0.0372 1926 0.0390 -0.0080 1927 0.1770 0.0218 1928 0.0550 -0.0330 1929 -0.5380 0.1560 1930 0.1020 0.1134 1931 0.9840 0.2322 1932 -0.0360 0.5832 1933 0.6490 0.5698 1934 1.2170 0.4056 1935 0.0350 0.3842 1936 0.1630 0.4082 1937 -0.1430 0.3226 1938 0.7690 0.3196 1939 0.7890 0.3904 1940 0.0200 0.4258 1941 0.5170 0.2988 1942 0.0340 0.1506 1943 0.1340 0.1392 1944 0.0480 0.1636 1945 -0.0370 0.1678 1946 0.6390 0.1214 1947 0.0550 0.1444 1948 -0.0980 0.1042 1949 0.1630 -0.1030 1950 -0.2380 -0.0602 1951 -0.3970 0.1314 1952 0.2690 0.2602 1953 0.8600 0.2946 1954 0.8070 0.4258 1955 -0.0660 0.3968 1956 0.2590 0.2344 1957 0.1240 0.1010 1958 0.0480 0.0672 1959 0.1400 0.0152 1960 -0.2350 -0.0104 1961 -0.0010 0.0182 1962 -0.0040 -0.0300 1963 0.1910 -0.0072 1964 -0.1010 -0.0514 1965 -0.1210 -0.0664 1966 -0.2220 -0.1636 1967 -0.0790 -0.1834 1968 -0.2950 -0.1860 1969 -0.2000 -0.1616 1970 -0.1340 -0.2060 1971 -0.1000 -0.0984 1972 -0.3010 -0.0192 1973 0.2430 -0.0328 1974 0.1960 -0.0638 1975 -0.2020 0.0690 1976 -0.2550 -0.0754 1977 0.3630 -0.2262 1978 -0.4790 -0.1360 1979 -0.5580 0.0484 1980 0.2490 -0.0864 1981 0.6670 0.0114 1982 -0.3110 0.1318 1983 0.0100 0.0098 1984 0.0440 0.0278 1985 -0.3610 0.2482 1986 0.7570 0.3190 1987 0.7910 0.2914 1988 0.3640 0.5442 1989 -0.0940 0.5312 1990 0.9030 0.4416 1991 0.6920 0.2950 1992 0.3430 0.4198 1993 -0.3690 0.3238 1994 0.5300 0.1736 1995 0.4230 0.1330 1996 -0.0590 0.4680 1997 0.1400 0.5750 1998 1.3060 0.6290 1999 1.0650 0.8244 2000 0.6930 0.9298 2001 0.9180 0.8054 2002 0.6670 0.7132 2003 0.6840 0.7574 2004 0.6040 0.8322 2005 0.9140 0.8852 2006 1.2920 0.7800 2007 0.9320 0.6966 2008 0.1580 0.6334 2009 0.1870 0.5080 2010 0.5980 * 2011 0.6650 *