I looked back to the previous "Ice Off' dates. In 1981 there was No Ice, looks like the earliest ice off was April 12, 2004 and the latest was May 29, 1983.
1979-May 15, 3:16 pm 1993-May 17, 3:30 pm
1980-May 7, 5:15 pm 1994-May 3, 3:00 pm
1981-No Ice 1995-May 12, 5:30 pm
1982-May 18, 5:38 pm 1996-May 10, 9:23 am
1983-May 29, 8:32 am 1997-May 10, 8:15 am
1984-May 24, 7:55 pm 1998-May 4, 2:38 am
1985-May 3, 1:17 pm 1999-May 14, 8:00 am
1986-May 7, 8:58 pm 2000-April 28, 3:20 pm
1987-April 30, 11:47 am 2001-May 8, 3:20 pm
1988-May 1, 1:35 pm 2002-May 8, 3:41 pm
1989-April 25, 3:15 pm 2003-April 23, 1:43 pm
1990-April 21, 6:30 pm 2004-April 12, 5:15 pm
1991-May 18, 3:00 pm 2005-April 29, 6:06 pm
1992-April 22, 3:00 am 2006-
I was up by the lake last week and it did not show any signs of thawing.