Choose from the options below and click "Plot" to create a time series graph.
Data are available from January 1895 through April 2013.
Move mouse towards an axis until highlighted. Left-click mouse to pan. Shift key + left-click to zoom.
| 1895 | 1896 | 1897 | 1898 | 1899 | 1900 | 1901 | 1902 | 1903 | 1904 | 1905 | 1906 | 1907 | 1908 | 1909 | 1910 | 1911 | 1912 | 1913 | 1914 | 1915 | 1916 | 1917 | 1918 | 1919 | 1920 | 1921 | 1922 | 1923 | 1924 | 1925 | 1926 | 1927 | 1928 | 1929 | 1930 | 1931 | 1932 | 1933 | 1934 | 1935 | 1936 | 1937 | 1938 | 1939 | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 | 1946 | 1947 | 1948 | 1949 | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 32.12°F | 35.90°F | 31.11°F | 29.03°F | 32.13°F | 34.90°F | 31.83°F | 31.09°F | 30.93°F | 32.36°F | 31.42°F | 35.22°F | 35.03°F | 33.66°F | 25.92°F | 32.18°F | 32.65°F | 33.45°F | 33.65°F | 27.23°F | 33.51°F | 29.27°F | 29.87°F | 34.84°F | 29.08°F | 33.43°F | 35.34°F | 33.77°F | 36.44°F | 27.79°F | 32.87°F | 31.67°F | 28.54°F | 33.29°F | 34.20°F | 31.53°F | 35.48°F | 29.87°F | 36.65°F | 32.97°F | 31.12°F | 34.81°F | 32.98°F | 34.59°F | 38.05°F | 36.42°F | 36.55°F | 33.26°F | 33.01°F | 31.05°F | 29.44°F | 36.53°F | 33.29°F | 32.93°F | 33.68°F | 33.30°F | 31.60°F | 33.78°F | 34.06°F | 34.29°F | 31.88°F | 36.41°F | 37.35°F | 32.38°F | 36.25°F | 30.65°F | 31.28°F | 33.59°F | 27.94°F | 32.19°F | 35.98°F | 32.87°F | 32.38°F | 30.23°F | 33.65°F | 33.79°F | 34.20°F | 29.95°F | 33.83°F | 33.84°F | 34.28°F | 31.02°F | 33.37°F | 29.97°F | 36.14°F | 35.20°F | 33.71°F | 35.95°F | 25.54°F | 34.66°F | 28.62°F | 34.45°F | 34.78°F | 33.50°F | 27.58°F | 30.91°F | 35.68°F | 31.82°F | 34.27°F | 36.27°F | 33.53°F | 34.06°F | 34.03°F | 35.69°F | 36.15°F | 28.21°F | 36.25°F | 35.24°F | 35.47°F | 35.08°F | 32.56°F | 36.47°F | 33.41°F | 31.89°F | 29.56°F | 32.47°F | 35.30°F | 36.26°F |
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