| Year | Max Depth (cm) | Date |
|---|---|---|
| 2024 | 22.0 | March 3 |
| 2023 | 36.0 | January 1 |
| 2022 | 42.0 | December 25 |
| 2021 | 18.0 | December 27 |
| 2020 | 21.0 | November 26 |
| 2019 | 40.0 | February 17 |
| 2018 | 29.0 | March 5 |
| 2017 | 21.0 | April 15 |
| 2016 | 27.0 | January 23 |
| 2015 | 28.0 | February 20 |
| 2014 | 36.0 | January 7 |
| 2013 | 46.0 | February 3 |
| 2012 | 39.0 | December 27 |
| 2011 | 38.0 | January 17 |
| 2010 | 20.0 | December 27 |
| 2009 | 43.0 | January 14 |
| 2008 | 45.0 | February 15 |
| 2007 | 37.0 | March 1 |
| 2006 | 31.0 | March 8 |
| 2005 | 30.0 | January 21 |
| 2004 | 30.0 | February 1 |
| 2003 | 28.0 | March 11 |
| 2002 | 12.0 | January 1 |
| 2001 | 13.0 | December 15 |
| 2000 | 14.0 | March 17 |
| 1999 | 42.0 | February 7 |
| 1998 | 27.0 | February 17 |
| 1997 | 49.0 | January 29 |
| 1996 | 43.0 | December 30 |
| 1995 | 29.0 | January 16 |
| 1994 | 38.0 | February 25 |
| 1993 | 21.0 | January 1 |
| 1992 | 21.0 | December 29 |
| 1991 | 30.0 | April 29 |
| 1990 | 18.0 | February 17 |
| 1989 | 18.0 | December 15 |
| 1988 | 12.0 | February 14 |
| 1987 | 19.0 | February 14 |
| 1986 | 21.0 | November 19 |
| 1985 | 20.0 | February 22 |
| 1984 | 27.0 | January 1 |
| 1983 | 31.0 | December 28 |
| 1982 | 24.0 | April 2 |