| Year | Max Depth (inches) | Date |
|---|---|---|
| 2024 | 12.0 | January 12 |
| 2023 | 20.0 | February 24 |
| 2022 | 26.0 | December 22 |
| 2021 | 10.0 | January 31 |
| 2020 | 22.0 | January 2 |
| 2019 | 24.0 | February 21 |
| 2018 | 26.0 | February 25 |
| 2017 | 22.0 | January 11 |
| 2016 | 18.0 | February 14 |
| 2015 | 14.0 | March 3 |
| 2014 | 35.0 | February 22 |
| 2013 | 21.0 | April 19 |
| 2012 | 13.0 | February 27 |
| 2011 | 28.0 | January 29 |
| 2008 | 29.0 | April 8 |
| 2007 | 18.0 | December 24 |
| 2006 | 24.0 | March 8 |
| 2005 | 28.0 | January 22 |
| 2004 | 26.0 | February 10 |
| 2003 | 14.0 | March 7 |
| 2002 | 19.0 | March 9 |
| 2001 | 37.0 | February 26 |
| 2000 | 14.0 | December 21 |
| 1999 | 16.0 | February 24 |
| 1998 | 19.0 | November 20 |
| 1997 | 35.0 | January 31 |
| 1996 | 45.0 | February 11 |
| 1995 | 25.0 | December 14 |
| 1994 | 46.0 | February 12 |
| 1993 | 42.0 | December 31 |
| 1992 | 37.0 | February 24 |
| 1991 | 41.0 | March 9 |
| 1990 | 39.0 | March 16 |
| 1989 | 71.0 | March 13 |
| 1988 | 32.0 | March 13 |
| 1987 | 26.0 | February 8 |
| 1986 | 49.0 | March 14 |
| 1985 | 31.0 | December 26 |
| 1984 | 28.0 | March 15 |
| 1983 | 36.0 | February 20 |
| 1982 | 33.0 | February 7 |
| 1981 | 19.0 | February 8 |
| 1980 | 44.0 | March 18 |
| 1979 | 61.0 | March 11 |
| 1978 | 46.0 | March 22 |
| 1977 | 26.0 | March 5 |
| 1976 | 48.0 | February 3 |
| 1975 | 64.0 | February 12 |
| 1974 | 27.0 | February 16 |
| 1973 | 17.0 | February 21 |
| 1972 | 26.0 | January 25 |
| 1971 | 24.0 | March 28 |
| 1970 | 23.0 | February 4 |
| 1969 | 39.0 | January 30 |
| 1968 | 18.0 | December 26 |
| 1967 | 25.0 | February 22 |
| 1966 | 32.0 | March 4 |
| 1965 | 30.0 | March 31 |
| 1964 | 18.0 | December 29 |
| 1963 | 24.0 | March 12 |
| 1962 | 13.0 | January 29 |
| 1961 | 16.0 | February 21 |
| 1960 | 14.0 | March 11 |
| 1959 | 17.0 | February 11 |
| 1958 | 15.0 | December 22 |
| 1957 | 27.0 | March 16 |
| 1956 | 30.0 | January 31 |
| 1955 | 25.0 | December 4 |
| 1954 | 24.0 | January 28 |
| 1953 | 19.0 | February 11 |
| 1952 | 16.0 | January 22 |
| 1951 | 31.0 | March 19 |
| 1950 | 30.0 | April 1 |
| 1949 | 24.0 | January 26 |
| 1948 | 26.0 | January 5 |
| 1947 | 22.0 | March 15 |
| 1946 | 16.0 | January 15 |
| 1945 | 15.0 | December 31 |
| 1944 | 24.0 | April 1 |
| 1943 | 26.0 | March 4 |
| 1942 | 19.0 | March 11 |
| 1941 | 25.0 | March 3 |
| 1940 | 24.0 | November 29 |
| 1939 | 17.0 | January 1 |
| 1938 | 20.0 | February 3 |
| 1937 | 32.0 | January 31 |
| 1936 | 30.0 | March 15 |
| 1935 | 32.0 | March 6 |
| 1934 | 28.0 | February 21 |
| 1933 | 16.0 | March 12 |
| 1932 | 21.0 | February 12 |
| 1931 | 7.0 | December 12 |
| 1929 | 10.0 | December 15 |
| 1927 | 30.0 | February 15 |
| 1926 | 28.0 | December 27 |
| 1899 | none | – |
| Years | Station | Coordinates |
|---|---|---|
| 1895–2024 | Tower 2S | location |