| Year | Max Depth (inches) | Date |
|---|---|---|
| 2024 | 7.0 | January 18 |
| 2023 | 8.0 | March 10 |
| 2022 | 10.0 | December 21 |
| 2021 | 10.0 | February 7 |
| 2020 | 10.0 | October 24 |
| 2019 | 24.0 | November 30 |
| 2018 | 14.0 | February 18 |
| 2017 | 13.0 | December 30 |
| 2016 | 8.0 | October 10 |
| 2015 | 9.0 | January 5 |
| 2014 | 6.0 | December 28 |
| 2013 | 7.0 | January 11 |
| 2012 | 9.0 | November 9 |
| 2011 | 12.0 | January 1 |
| 2010 | 12.0 | December 29 |
| 2009 | 19.0 | April 29 |
| 2008 | 11.0 | December 13 |
| 2007 | 5.0 | January 6 |
| 2006 | 6.0 | March 19 |
| 2005 | 7.0 | January 1 |
| 2004 | 6.0 | January 2 |
| 2003 | 7.0 | November 3 |
| 2002 | 6.0 | March 20 |
| 2001 | 7.0 | November 26 |
| 2000 | 5.0 | December 15 |
| 1999 | 5.0 | April 29 |
| 1998 | 6.0 | March 10 |
| 1997 | 8.0 | January 15 |
| 1996 | 15.0 | December 29 |
| 1995 | 3.0 | March 27 |
| 1994 | none | – |
| 1993 | none | – |
| 1992 | none | – |
| 1991 | 5.0 | November 6 |
| 1990 | none | – |
| 1989 | none | – |
| 1988 | none | – |
| 1987 | none | – |
| 1986 | 17.0 | February 18 |
| 1985 | 19.0 | December 12 |
| 1984 | 8.0 | December 30 |
| 1983 | 10.0 | December 27 |
| 1982 | 10.0 | March 19 |
| 1981 | 7.0 | March 18 |
| 1980 | 6.0 | April 1 |
| 1979 | 6.0 | December 15 |
| 1978 | none | – |
| 1977 | none | – |
| 1976 | 2.0 | November 25 |
| 1975 | none | – |
| 1974 | none | – |
| 1971 | 1.0 | October 16 |
| 1970 | 8.0 | March 1 |
| 1969 | 7.0 | January 27 |
| 1968 | 8.0 | December 28 |
| 1967 | 10.0 | April 21 |
| 1966 | none | – |
| 1965 | 4.0 | September 15 |
| 1964 | none | – |
| 1963 | 6.0 | April 1 |
| 1962 | 1.0 | March 10 |
| 1961 | none | – |
| 1960 | 2.0 | December 4 |
| 1959 | 2.0 | October 7 |
| 1958 | none | – |
| 1957 | none | – |
| 1956 | 3.0 | January 15 |
| 1955 | 2.0 | November 21 |
| 1954 | 4.0 | February 26 |
| 1953 | 4.0 | December 10 |
| 1952 | 6.0 | January 15 |
| 1951 | 8.0 | December 29 |
| 1950 | 4.0 | January 13 |
| 1949 | 6.0 | January 27 |
| 1948 | 1.0 | December 3 |
| 1947 | 3.0 | November 9 |
| 1946 | 8.0 | October 26 |
| 1945 | 6.0 | September 22 |
| 1944 | 2.0 | December 20 |
| 1941 | 12.0 | November 17 |
| 1940 | 3.0 | January 31 |
| 1939 | 10.0 | October 25 |
| 1938 | 7.0 | March 30 |
| 1937 | 19.0 | January 31 |
| 1936 | 14.0 | February 14 |
| 1935 | 5.0 | April 1 |
| 1934 | 6.0 | March 6 |
| 1932 | 9.0 | December 11 |
| 1931 | 6.0 | April 2 |
| 1930 | 17.0 | November 12 |
| 1929 | 14.0 | December 16 |
| 1928 | 8.0 | January 1 |
| 1927 | 9.0 | December 8 |
| 1926 | 4.0 | September 23 |
| 1925 | 6.0 | September 19 |
| 1924 | 9.0 | January 17 |
| 1923 | 13.0 | December 29 |
| 1922 | 8.0 | April 8 |
| 1921 | 12.0 | December 2 |
| 1920 | 7.0 | January 22 |
| 1916 | 10.0 | January 26 |
| 1915 | 2.0 | November 27 |
| 1914 | 4.0 | February 11 |
| 1913 | 7.0 | January 5 |
| 1912 | 8.0 | January 15 |
| 1911 | 12.0 | March 1 |
| Years | Station | Coordinates |
|---|---|---|
| 1911–2024 | Conrad | location |