| Year | Max Depth (inches) | Date |
|---|---|---|
| 2010 | none | – |
| 2009 | none | – |
| 2008 | 2.0 | March 7 |
| 2007 | none | – |
| 2006 | none | – |
| 2005 | none | – |
| 2004 | none | – |
| 2003 | 2.0 | February 25 |
| 2002 | none | – |
| 2001 | none | – |
| 2000 | 4.0 | December 28 |
| 1999 | none | – |
| 1998 | none | – |
| 1997 | none | – |
| 1996 | none | – |
| 1995 | none | – |
| 1994 | none | – |
| 1993 | none | – |
| 1992 | none | – |
| 1991 | none | – |
| 1990 | none | – |
| 1989 | none | – |
| 1988 | 3.0 | February 7 |
| 1987 | none | – |
| 1986 | none | – |
| 1985 | none | – |
| 1984 | none | – |
| 1983 | none | – |
| 1982 | 7.0 | January 14 |
| 1981 | none | – |
| 1980 | none | – |
| 1979 | none | – |
| 1978 | none | – |
| 1977 | none | – |
| 1976 | none | – |
| 1975 | none | – |
| 1974 | none | – |
| 1973 | 2.0 | January 11 |
| 1972 | none | – |
| 1971 | none | – |
| 1970 | none | – |
| 1969 | none | – |
| 1968 | none | – |
| 1967 | none | – |
| 1966 | 4.0 | January 22 |
| 1965 | 1.0 | February 24 |
| 1964 | 4.0 | January 16 |
| 1963 | 1.0 | February 12 |
| 1962 | 2.0 | January 9 |
| 1961 | 3.0 | January 28 |
| 1960 | none | – |
| 1959 | none | – |
| 1958 | none | – |
| 1957 | none | – |
| 1956 | none | – |
| 1955 | none | – |
| 1954 | none | – |
| 1953 | none | – |
| 1952 | none | – |
| 1951 | none | – |
| 1950 | none | – |
| 1949 | 6.0 | January 31 |
| 1948 | none | – |
| 1947 | none | – |
| 1946 | 5.0 | January 22 |
| 1945 | none | – |
| 1944 | none | – |
| 1943 | none | – |
| 1942 | none | – |
| 1941 | none | – |
| 1940 | 5.0 | January 23 |
| 1939 | none | – |
| 1938 | none | – |
| 1937 | none | – |
| 1936 | none | – |
| 1935 | none | – |
| 1934 | none | – |
| 1933 | none | – |
| 1932 | 2.0 | March 11 |
| 1931 | none | – |
| 1930 | none | – |
| 1929 | 26.0 | December 22 |
| 1928 | none | – |
| 1927 | none | – |
| 1926 | none | – |
| 1925 | none | – |
| 1924 | none | – |
| 1923 | none | – |
| 1922 | none | – |
| 1921 | none | – |
| 1920 | none | – |
| 1919 | none | – |
| 1918 | none | – |
| 1917 | none | – |
| 1916 | none | – |
| 1915 | none | – |
| 1914 | none | – |
| 1913 | none | – |
| 1912 | none | – |
| 1911 | none | – |
| 1910 | none | – |
| 1909 | none | – |
| 1908 | none | – |
| 1907 | none | – |
| 1906 | none | – |
| 1905 | none | – |
| 1904 | none | – |
| 1903 | none | – |
| Years | Station | Coordinates |
|---|---|---|
| 1903–2024 | Hillsboro | location |