Contiguous 48 U.S. Surface Air Temperature Anomaly (C) ------------------------------------------------------ year Annual_Mean 5-year_Mean --------------------------------- 1880 -0.4600 * 1881 0.0568 * 1882 -0.0786 -0.3715 1883 -0.7895 -0.3916 1884 -0.5860 -0.4983 1885 -0.5605 -0.5339 1886 -0.4768 -0.4633 1887 -0.2565 -0.3068 1888 -0.4365 -0.1784 1889 0.1964 -0.1477 1890 0.0814 -0.1987 1891 -0.3234 -0.2399 1892 -0.5114 -0.2567 1893 -0.6424 -0.4168 1894 0.1124 -0.3199 1895 -0.7194 -0.2411 1896 0.1611 -0.1486 1897 -0.1174 -0.2509 1898 -0.1799 0.0050 1899 -0.3988 -0.0183 1900 0.5600 -0.0081 1901 0.0446 -0.0924 1902 -0.0666 -0.0888 1903 -0.6012 -0.2891 1904 -0.3807 -0.3038 1905 -0.4414 -0.3287 1906 -0.0289 -0.1817 1907 -0.1913 -0.1522 1908 0.1339 0.0014 1909 -0.2333 0.0329 1910 0.3264 -0.1057 1911 0.1290 -0.1592 1912 -0.8845 -0.1082 1913 -0.1335 -0.2100 1914 0.0216 -0.3402 1915 -0.1826 -0.3624 1916 -0.5222 -0.3315 1917 -0.9953 -0.3671 1918 0.0211 -0.4163 1919 -0.1563 -0.0933 1920 -0.4289 0.1322 1921 1.0930 0.1086 1922 0.1321 0.0018 1923 -0.0970 0.1617 1924 -0.6903 -0.0503 1925 0.3706 -0.0420 1926 0.0332 -0.0116 1927 0.1734 0.0181 1928 0.0551 -0.0350 1929 -0.5416 0.1558 1930 0.1050 0.1156 1931 0.9873 0.2357 1932 -0.0277 0.5884 1933 0.6556 0.5737 1934 1.2217 0.4085 1935 0.0315 0.3858 1936 0.1612 0.4098 1937 -0.1409 0.3229 1938 0.7754 0.3199 1939 0.7873 0.3908 1940 0.0167 0.4263 1941 0.5156 0.2994 1942 0.0367 0.1509 1943 0.1405 0.1390 1944 0.0452 0.1620 1945 -0.0430 0.1637 1946 0.6304 0.1136 1947 0.0456 0.1355 1948 -0.1103 0.0941 1949 0.1547 -0.1132 1950 -0.2499 -0.0697 1951 -0.4061 0.1231 1952 0.2630 0.2525 1953 0.8540 0.2878 1954 0.8013 0.4194 1955 -0.0734 0.3914 1956 0.2523 0.2291 1957 0.1230 0.0958 1958 0.0425 0.0640 1959 0.1348 0.0134 1960 -0.2324 -0.0122 1961 -0.0007 0.0174 1962 -0.0050 -0.0297 1963 0.1902 -0.0079 1964 -0.1004 -0.0525 1965 -0.1237 -0.0682 1966 -0.2238 -0.1661 1967 -0.0833 -0.1866 1968 -0.2994 -0.1894 1969 -0.2029 -0.1655 1970 -0.1376 -0.2090 1971 -0.1042 -0.1005 1972 -0.3007 -0.0204 1973 0.2430 -0.0319 1974 0.1977 -0.0601 1975 -0.1952 0.0750 1976 -0.2455 -0.0665 1977 0.3752 -0.2145 1978 -0.4646 -0.1226 1979 -0.5426 0.0618 1980 0.2646 -0.0742 1981 0.6764 0.0224 1982 -0.3047 0.1409 1983 0.0185 0.0173 1984 0.0499 0.0339 1985 -0.3535 0.2561 1986 0.7594 0.3275 1987 0.8063 0.3002 1988 0.3756 0.5530 1989 -0.0870 0.5412 1990 0.9105 0.4512 1991 0.7005 0.3036 1992 0.3562 0.4280 1993 -0.3623 0.3315 1994 0.5350 0.1816 1995 0.4282 0.1410 1996 -0.0489 0.4788 1997 0.1528 0.5908 1998 1.3271 0.6489 1999 1.0948 0.8476 2000 0.7189 0.9551 2001 0.9443 0.8324 2002 0.6902 0.7392 2003 0.7136 0.7803 2004 0.6290 0.8523 2005 0.9245 0.9030 2006 1.3041 0.7952 2007 0.9436 0.7116 2008 0.1747 0.6456 2009 0.2113 0.5200 2010 0.5943 0.7041 2011 0.6759 * 2012 1.8643 *