| Year | Max Depth (inches) | Date |
|---|---|---|
| 2024 | none | – |
| 2023 | none | – |
| 2022 | 2.0 | January 17 |
| 2021 | none | – |
| 2020 | none | – |
| 2019 | none | – |
| 2018 | none | – |
| 2017 | none | – |
| 2016 | 1.0 | January 23 |
| 2015 | none | – |
| 2014 | 6.0 | February 13 |
| 2012 | none | – |
| 2011 | 5.0 | January 10 |
| 2010 | 3.0 | February 13 |
| 2009 | none | – |
| 2008 | none | – |
| 2007 | none | – |
| 2006 | none | – |
| 2005 | none | – |
| 2004 | none | – |
| 2003 | none | – |
| 2002 | none | – |
| 2001 | none | – |
| 2000 | none | – |
| 1999 | none | – |
| 1998 | none | – |
| 1997 | none | – |
| 1996 | none | – |
| 1995 | none | – |
| 1994 | none | – |
| 1993 | none | – |
| 1992 | none | – |
| 1991 | none | – |
| 1990 | none | – |
| 1989 | 7.0 | February 23 |
| 1988 | 7.0 | January 8 |
| 1987 | 7.0 | January 22 |
| 1986 | none | – |
| 1985 | none | – |
| 1984 | 2.0 | February 5 |
| 1983 | 2.0 | March 24 |
| 1982 | 7.0 | January 14 |
| 1981 | none | – |
| 1980 | 4.0 | March 2 |
| 1979 | none | – |
| 1978 | none | – |
| 1977 | 4.0 | January 24 |
| 1976 | none | – |
| 1975 | none | – |
| 1974 | none | – |
| 1973 | 4.0 | January 7 |
| 1972 | none | – |
| 1971 | 8.0 | March 25 |
| 1970 | 1.0 | December 31 |
| 1969 | none | – |
| 1968 | 7.0 | February 29 |
| 1967 | 1.0 | February 9 |
| 1966 | 5.0 | January 26 |
| 1965 | 4.0 | January 16 |
| 1964 | none | – |
| 1963 | 1.0 | December 23 |
| 1962 | none | – |
| 1961 | 1.0 | January 26 |
| 1960 | 5.0 | March 10 |
| 1959 | none | – |
| 1958 | 4.0 | February 15 |
| 1957 | none | – |
| 1956 | none | – |
| 1955 | none | – |
| 1954 | none | – |
| 1953 | none | – |
| 1952 | 2.0 | February 27 |
| 1951 | none | – |
| 1950 | none | – |
| 1949 | none | – |
| 1948 | 2.0 | January 24 |
| 1947 | none | – |
| 1946 | none | – |
| 1945 | 2.0 | December 19 |
| 1944 | 1.0 | February 14 |
| 1943 | none | – |
| 1942 | 10.0 | March 2 |
| 1941 | none | – |
| 1940 | 8.0 | January 24 |
| 1939 | none | – |
| 1938 | none | – |
| 1937 | none | – |
| 1936 | none | – |
| 1935 | none | – |
| 1934 | none | – |
| 1933 | none | – |
| 1932 | none | – |
| 1931 | none | – |
| 1930 | 9.0 | December 17 |
| 1929 | 3.0 | December 22 |
| 1928 | 1.0 | January 3 |
| 1927 | 2.0 | March 1 |
| 1918 | 2.0 | January 11 |
| 1912 | 4.0 | January 13 |
| 1909 | none | – |
| Years | Station | Coordinates |
|---|---|---|
| 1908–2024 | Hartwell | location |