Year,Value,Lake Superior,SST,Aug,(°C)
1940,13.565
1941,11.883
1942,13.024
1943,13.358
1944,14.732
1945,14.31
1946,13.098
1947,13.436
1948,11.783
1949,13.273
1950,13.169
1951,13.612
1952,15.201
1953,12.217
1954,12.945
1955,14.622
1956,11.431
1957,11.769
1958,14.631
1959,14.487
1960,14.806
1961,12.883
1962,11.281
1963,11.133
1964,10.819
1965,10.497
1966,12.989
1967,10.938
1968,9.729
1969,13.052
1970,15.128
1971,11.609
1972,10.436
1973,14.147
1974,12.435
1975,14.337
1976,13.746
1977,12.183
1978,11.974
1979,12.502
1980,15.193
1981,15.27
1982,9.57
1983,16.447
1984,13.83
1985,12.391
1986,13.353
1987,16.065
1988,15.061
1989,12.025
1990,12.046
1991,14.871
1992,12.762
1993,13.186
1994,11.645
1995,15.512
1996,9.89
1997,12.571
1998,17.808
1999,16.319
2000,15.655
2001,15.8
2002,14.842
2003,14.136
2004,12.616
2005,16.729
2006,17.099
2007,14.526
2008,19.916
2009,18.799
2010,21.506
2011,20.608
2012,21.635
2013,18.736
2014,11.602
2015,12.532
2016,17.29
2017,13.628
2018,13.249
2019,13.789
2020,15.383
2021,16.781
2022,12.061
2023,14.633
2024,16.91