Lake Operations

Lake Conditions

Lake Level September 2014

                                                      Normal Summer Lake Level is 927.86
                                                 As of October 24, 2014 Lake Level is 927.83   
                                                              -   3/8 inch (below) normal

Secchi Disc for October 23, 2014 was 8 (ft)

Water temp was 55.4°

For more information:

http://dnr.wi.gov/lakes/lakepages/LakeDetail.aspx?wbic=793600

http://waterdata.usgs.gov/wi/nwis/uv/?site_no=05431016&agency_cd=USGS

 

General Guidelines:

"Ice On"
In case the lake should be frozen in the morning, after a cold calm night, but then breaks up in the afternoon with wind and sun, I don't count that as a freeze-up date.  However, if a lake freezes on one day, stays frozen for a few days, then breaks up for some days before a final freeze-up for the winter, I record all the freezing and opening dates so that I can determine the total number of days each winter that the lake was covered with ice - regardless of whether it is safe for walking.  In the simplest case, a lake may freeze on one day and then stay frozen all winter.  In some winters, however, the freeze-up process can be quite complex with multiple freezing and openings.

"Ice-Off"
The lake is considered thawed when it is possible to boat from any shore to the deepest part of the lake without encountering ice.

2014
Ice on Date - December 16, 2013
Ice off Date - April 11, 2014

2013
Ice on Date - January 22, 2013
Ice off Date - April 10, 2013

  HISTORICAL INFORMATION

            TOTAL DAYS
WINTER   DATE ICE ON   DATE ICE OFF   OF ICE COVER
1983-1984   12/19/1983   4/4/1984   107
1984-1985   1/4/1985   3/27/1985   82
1985-1986   12/21/1985   3/28/1986   97
1986-1987   12/13/1986   3/16/1987   93
1987-1988   12/27/1987   3/25/1988   89
1988-1989   12/12/1988   12/22/1988   10
    12/26/1988   3/29/1989   93
1989-1990   12/7/1989   3/14/1990   97
1990-1991   12/26/1990   3/23/1991   87
1991-1992   12/3/1991   12/7/1991   4
    12/16/1991   3/9/1992   84
1992-1993   12/24/1992   4/10/1993   107
1993-1994   12/23/1993   3/29/1994   96
1994-1995   1/10/1995   3/19/1995   68
1995-1996   12/16/1995   3/31/1996   106
1996-1997   12/26/1996   3/28/1997   92
1997-1998   1/11/1998   2/26/1998   46
1998-1999   12/30/1998   3/21/1999   81
1999-2000   1/20/2000   2/27/2000   38
2000-2001   12/13/2000   4/7/2001   115
2001-2002   1/2/2002   3/17/2002   74
2002-2003   12/4/2002   12/19/2002   15
    1/14/2003   3/28/2003   73
2003-2004   1/9/2004   3/24/2004   75
2004-2005   12/25/2004   3/30/2005   95
2005-2006   12/7/2005   3/28/2006   111
2006-2007   1/17/2007   3/25/2007   67
2007-2008   12/20/2007   4/5/2008   94
2008-2009   12/16/2008   3/18/2009   93
2009-2010   12/16/2009   12/25/2009   10
2009-2010   12/29/2009   3/25/2010   87
2010-2011   12/17/2010   3/23/2011   96
2011-2012   1/20/2012   1/31/2012   12
    2/10/2012   3/11/2012    30 
2012-2013   1/22/2013   4/10/2013   78 
2013-2014   12/16/2013   4/11/2014   116

Document Available:

Water Classification in Wisconsin:

http://dnr.wi.gov/lakes/waterquality/

  DELAVAN LAKE BUOY MAP

Buoy Map