| Year | Max Depth (inches) | Date |
|---|---|---|
| 2024 | 2.0 | January 16 |
| 2023 | none | – |
| 2022 | 5.0 | January 3 |
| 2021 | 5.0 | February 12 |
| 2020 | none | – |
| 2019 | 2.0 | January 13 |
| 2018 | 12.0 | December 9 |
| 2017 | 7.0 | January 7 |
| 2016 | 15.0 | January 23 |
| 2015 | 6.0 | February 17 |
| 2014 | 4.0 | February 13 |
| 2013 | 3.0 | March 6 |
| 2012 | 1.0 | February 19 |
| 2011 | 1.0 | January 26 |
| 2010 | 14.0 | January 30 |
| 2009 | 10.0 | December 20 |
| 2008 | 1.0 | January 20 |
| 2007 | 1.0 | January 25 |
| 2006 | 1.0 | February 12 |
| 2005 | 3.0 | December 5 |
| 2004 | 5.0 | January 26 |
| 2003 | 5.0 | February 16 |
| 2002 | 5.0 | January 3 |
| 2001 | 4.0 | February 22 |
| 2000 | 9.0 | January 25 |
| 1999 | 2.0 | March 9 |
| 1998 | 1.0 | December 24 |
| 1997 | 3.0 | February 8 |
| 1996 | 15.0 | January 8 |
| 1995 | 7.0 | January 30 |
| 1994 | 3.0 | January 1 |
| 1993 | 5.0 | December 29 |
| 1992 | none | – |
| 1991 | none | – |
| 1990 | 1.0 | December 27 |
| 1989 | 10.0 | December 13 |
| 1988 | 8.0 | January 8 |
| 1987 | 19.0 | January 26 |
| 1986 | 5.0 | January 27 |
| 1985 | 5.0 | January 20 |
| 1984 | 2.0 | January 18 |
| 1983 | 11.0 | February 11 |
| 1982 | 10.0 | February 28 |
| 1981 | 3.0 | January 21 |
| 1980 | 13.0 | January 5 |
| 1979 | 16.0 | February 19 |
| 1978 | 4.0 | February 2 |
| 1977 | 6.0 | January 9 |
| 1976 | 4.0 | December 8 |
| 1975 | 6.0 | February 4 |
| 1974 | 4.0 | February 8 |
| 1973 | 13.0 | December 17 |
| 1972 | 7.0 | February 19 |
| 1971 | 9.0 | March 26 |
| 1970 | none | – |
| 1969 | 2.0 | March 6 |
| 1968 | 1.0 | December 7 |
| 1967 | 5.0 | February 7 |
| 1966 | 16.0 | January 27 |
| 1965 | 7.0 | January 17 |
| 1964 | 7.0 | February 29 |
| 1963 | none | – |
| 1962 | 5.0 | January 10 |
| 1961 | 4.0 | January 27 |
| 1960 | none | – |
| 1959 | none | – |
| 1958 | none | – |
| 1957 | 4.0 | December 4 |
| 1956 | none | – |
| 1955 | 2.0 | February 12 |
| 1954 | none | – |
| 1953 | none | – |
| 1952 | none | – |
| 1951 | none | – |
| 1950 | 4.0 | February 25 |
| 1949 | none | – |
| 1948 | 7.0 | January 31 |
| 1947 | 4.0 | March 27 |
| 1928 | 6.0 | January 28 |
| 1927 | 1.0 | January 15 |
| 1926 | 4.0 | January 8 |
| 1925 | 1.0 | January 2 |
| 1924 | none | – |
| 1923 | 5.0 | February 5 |
| 1921 | none | – |
| 1920 | 5.0 | March 7 |
| 1919 | 7.0 | December 19 |
| 1918 | 11.0 | January 22 |
| 1917 | 10.0 | December 12 |
| 1916 | 5.0 | March 3 |
| 1914 | none | – |
| 1911 | none | – |
| 1909 | 4.0 | February 8 |
| 1908 | 14.0 | December 22 |
| 1904 | 3.0 | February 11 |
| 1903 | 1.0 | November 29 |
| 1902 | none | – |
| 1901 | 1.0 | February 8 |
| 1900 | 7.0 | December 23 |
| 1899 | 3.0 | January 31 |
| Years | Station | Coordinates |
|---|---|---|
| 1893–2024 | Ashland | location |