Year,Value,Lake Superior,SST,Jan,(°C)
1940,1.37
1941,1.365
1942,1.365
1943,1.365
1944,1.372
1945,1.368
1946,1.365
1947,1.366
1948,1.371
1949,1.366
1950,1.368
1951,1.366
1952,1.371
1953,1.366
1954,1.366
1955,1.366
1956,1.37
1957,1.365
1958,1.366
1959,1.366
1960,1.798
1961,1.988
1962,1.446
1963,0.059
1964,2.014
1965,1.117
1966,1.27
1967,1.39
1968,0.122
1969,2.194
1970,1.108
1971,2.045
1972,0.836
1973,1.87
1974,1.171
1975,2.612
1976,2.001
1977,-0.767
1978,1.223
1979,1.154
1980,1.679
1981,1.511
1982,1.764
1983,1.879
1984,1.534
1985,1.748
1986,1.725
1987,1.853
1988,1.979
1989,1.973
1990,1.972
1991,1.937
1992,1.969
1993,1.968
1994,1.621
1995,1.965
1996,1.943
1997,1.953
1998,1.975
1999,1.975
2000,1.979
2001,1.974
2002,1.977
2003,1.967
2004,1.975
2005,1.975
2006,1.975
2007,1.976
2008,0.626
2009,0.067
2010,0.35
2011,0.383
2012,1.237
2013,1.007
2014,-0.495
2015,0.192
2016,1.731
2017,1.715
2018,0.547
2019,1.245
2020,1.333
2021,1.877
2022,1.419
2023,1.496
2024,1.691
2025,1.891