| Year | Ice out |
|---|---|
| 1921 | April 2nd |
| 1923 | April 22nd |
| 1925 | April 5th |
| 1926 | April 19th |
| 1927 | April 12th |
| 1928 | April 9th |
| 1929 | April 6th |
| 1930 | April 7th |
| 1931 | April 8th |
| 1932 | April 13th |
| 1933 | April 19th |
| 1934 | April 10th |
| 1935 | April 13th |
| 1936 | April 22nd |
| 1937 | April 22nd |
| 1938 | April 13th |
| 1939 | April 20th |
| 1940 | April 26th |
| 1941 | April 13th |
| 1942 | April 7th |
| 1943 | April 13th |
| 1944 | April 23rd |
| 1945 | March 29th |
| 1946 | April 2nd |
| 1947 | April 22nd |
| 1948 | April 17th |
| 1949 | April 17th |
| 1950 | May 7th** |
| 1951 | April 29th |
| 1952 | April 23rd |
| 1953 | April 9th |
| 1954 | April 13th |
| 1955 | April 11th |
| 1956 | April 24th |
| 1957 | April 21st |
| 1958 | April 12th |
| 1959 | April 6th |
| 1960 | April 18th |
| 1961 | April 7th |
| 1962 | April 26th |
| 1963 | April 30th |
| 1964 | April 16th |
| 1965 | April 17th |
| 1966 | April 4th |
| 1967 | April 9th |
| 1968 | March 31st |
| 1969 | April 19th |
| 1970 | April 26th |
| 1971 | April 17th |
| 1972 | April 27th |
| 1973 | April 2nd |
| 1974 | April 20th |
| 1975 | May 3rd |
| 1976 | April 9th |
| 1977 | April 11th |
| 1978 | April 18th |
| 1979 | April 25th |
| 1980 | April 19th |
| 1981 | March 27 |
| 1982 | April 20th |
| 1983 | April 15th |
| 1984 | April 14th |
| 1985 | April 15th |
| 1986 | April 11th |
| 1987 | March 24th |
| 1988 | April 8th |
| 1989 | April 20th |
| 1990 | April 10th |
| 1991 | April 8th |
| 1992 | April 10th |
| 1993 | April 19th |
| 1994 | April 15th |
| 1995 | April 15th |
| 1996 | April 24th |
| 1997 | April 22nd |
| 1998 | March 31st |
| 1999 | April 5th |
| 2000 | March 24th |
| 2001 | April 21st |
| 2002 | April 16th |
| 2003 | April 13th |
| 2004 | April 5th |
| 2005 | April 8th |
| 2006 | April 7th |
| 2007 | April 16th |
| 2008 | April 25th |
| 2009 | April 16th |
| 2010 | March 31st |
| 2011 | April 14th |
| 2012 | March 22nd (earliest recorded) |
| 2013 | May 7th |
| 2014 | April 27th |
| 2015 | April 9th |
| 2016 | March 17th |
| 2017 | March 31 |
| 2018 | May 2 |
| 2019 | April 22 |
| 2020 | April 8 |