Contiguous 48 U.S. Surface Air Temperature Anomaly (C) ------------------------------------------------------ year Annual_Mean 5-year_Mean --------------------------------- 1880 -0.5490 * 1881 -0.0180 * 1882 -0.0950 -0.4524 1883 -0.9010 -0.4938 1884 -0.6990 -0.6024 1885 -0.7560 -0.6426 1886 -0.5610 -0.5832 1887 -0.2960 -0.4280 1888 -0.6040 -0.2788 1889 0.0770 -0.2410 1890 -0.0100 -0.3132 1891 -0.3720 -0.3430 1892 -0.6570 -0.3484 1893 -0.7530 -0.4922 1894 0.0500 -0.3874 1895 -0.7290 -0.2822 1896 0.1520 -0.1684 1897 -0.1310 -0.2610 1898 -0.1840 -0.0042 1899 -0.4130 -0.0244 1900 0.5550 -0.0070 1901 0.0510 -0.0900 1902 -0.0440 -0.0798 1903 -0.5990 -0.2760 1904 -0.3620 -0.2870 1905 -0.4260 -0.3160 1906 -0.0040 -0.1664 1907 -0.1890 -0.1366 1908 0.1490 0.0168 1909 -0.2130 0.0456 1910 0.3410 -0.0884 1911 0.1400 -0.1412 1912 -0.8590 -0.0916 1913 -0.1150 -0.1946 1914 0.0350 -0.3244 1915 -0.1740 -0.3488 1916 -0.5090 -0.3196 1917 -0.9810 -0.3548 1918 0.0310 -0.4034 1919 -0.1410 -0.0816 1920 -0.4170 0.1436 1921 1.1000 0.1202 1922 0.1450 0.0120 1923 -0.0860 0.1714 1924 -0.6820 -0.0400 1925 0.3800 -0.0324 1926 0.0430 -0.0032 1927 0.1830 0.0270 1928 0.0600 -0.0274 1929 -0.5310 0.1618 1930 0.1080 0.1190 1931 0.9890 0.2378 1932 -0.0310 0.5882 1933 0.6540 0.5738 1934 1.2210 0.4088 1935 0.0360 0.3870 1936 0.1640 0.4104 1937 -0.1400 0.3244 1938 0.7710 0.3218 1939 0.7910 0.3930 1940 0.0230 0.4288 1941 0.5200 0.3022 1942 0.0390 0.1536 1943 0.1380 0.1418 1944 0.0480 0.1662 1945 -0.0360 0.1696 1946 0.6420 0.1222 1947 0.0560 0.1450 1948 -0.0990 0.1044 1949 0.1620 -0.1036 1950 -0.2390 -0.0610 1951 -0.3980 0.1304 1952 0.2690 0.2590 1953 0.8580 0.2934 1954 0.8050 0.4244 1955 -0.0670 0.3952 1956 0.2570 0.2334 1957 0.1230 0.1000 1958 0.0490 0.0662 1959 0.1380 0.0148 1960 -0.2360 -0.0102 1961 0.0000 0.0184 1962 -0.0020 -0.0288 1963 0.1920 -0.0052 1964 -0.0980 -0.0490 1965 -0.1180 -0.0644 1966 -0.2190 -0.1620 1967 -0.0790 -0.1826 1968 -0.2960 -0.1860 1969 -0.2010 -0.1624 1970 -0.1350 -0.2068 1971 -0.1010 -0.0988 1972 -0.3010 -0.0192 1973 0.2440 -0.0324 1974 0.1970 -0.0632 1975 -0.2010 0.0700 1976 -0.2550 -0.0744 1977 0.3650 -0.2256 1978 -0.4780 -0.1358 1979 -0.5590 0.0478 1980 0.2480 -0.0882 1981 0.6630 0.0088 1982 -0.3150 0.1284 1983 0.0070 0.0056 1984 0.0390 0.0232 1985 -0.3660 0.2430 1986 0.7510 0.3128 1987 0.7840 0.2850 1988 0.3560 0.5378 1989 -0.1000 0.5248 1990 0.8980 0.4354 1991 0.6860 0.2896 1992 0.3370 0.4150 1993 -0.3730 0.3198 1994 0.5270 0.1698 1995 0.4220 0.1292 1996 -0.0640 0.4646 1997 0.1340 0.5722 1998 1.3040 0.6268 1999 1.0650 0.8234 2000 0.6950 0.9304 2001 0.9190 0.8066 2002 0.6690 0.7142 2003 0.6850 0.7576 2004 0.6030 0.8316 2005 0.9120 0.8838 2006 1.2890 0.7784 2007 0.9300 0.6952 2008 0.1580 0.6318 2009 0.1870 0.5064 2010 0.5950 * 2011 0.6620 *