Lake Superior maximum ice coverage graph 1972 to 2020
Data
| Season |
Week |
Total Concentration |
|---|
| 1972/73 |
1973-02-26 |
0.6965 |
| 1973/74 |
1974-02-19 |
0.7358 |
| 1974/75 |
1975-02-12 |
0.6404 |
| 1975/76 |
1976-03-19 |
0.4709 |
| 1976/77 |
1977-022-6 |
0.9724 |
| 1977/78 |
1978-03-12 |
0.9098 |
| 1978/79 |
1979-02-19 |
0.9735 |
| 1979/80 |
1980-03-05 |
0.7811 |
| 1980/81 |
1981-02-12 |
0.8587 |
| 1981/82 |
1982-03-12 |
0.8498 |
| 1982/83 |
1983-02-05 |
0.2058 |
| 1983/84 |
1984-03-05 |
0.8935 |
| 1984/85 |
1985-03-05 |
0.8321 |
| 1985/86 |
1986-02-19 |
0.9215 |
| 1986/87 |
1987-01-22 |
0.1472 |
| 1987/88 |
1988-02-12 |
0.6845 |
| 1988/89 |
1989-03-12 |
0.8421 |
| 1989/90 |
1990-03-05 |
0.8315 |
| 1990/91 |
1991-03-05 |
0.9031 |
| 1991/92 |
1992-03-12 |
0.7542 |
| 1992/93 |
1993-02-26 |
0.8168 |
| 1993/94 |
1994-02-05 |
0.9738 |
| 1994/95 |
1995-03-05 |
0.2309 |
| 1995/96 |
1996-03-05 |
0.9914* |
| 1996/97 |
1997-03-19 |
0.8952 |
| 1997/98 |
1998-01-15 |
0.1189 |
| 1998/99 |
1999-01-15 |
0.1551 |
| 1999/00 |
2000-02-19 |
0.3426 |
| 2000/01 |
2001-03-12 |
0.4694 |
| 2001/02 |
2002-03-19 |
0.1089 |
| 2002/03 |
2003-03-12 |
0.9731 |
| 2003/04 |
2004-02-12 |
0.4074 |
| 2004/05 |
2005-03-12 |
0.4537 |
| 2005/06 |
2006-03-05 |
0.1612 |
| 2006/07 |
2007-02-19 |
0.4441 |
| 2007/08 |
2008-03-12 |
0.6439 |
| 2008/09 |
2009-03-05 |
0.9545 |
| 2009/10 |
2010-02-19 |
0.2841 |
| 2010/11 |
2011-03-05 |
0.3083 |
| 2011/12 |
2012-02-19 |
0.0977** |
| 2012/13 |
2013-02-19 |
0.3708 |
| 2013/14 |
2014-03-05 |
0.9741 |
| 2014/15 |
2015-02-26 |
0.9736 |
| 2015/16 |
2016-02-12 |
0.193 |
| 2016/17 |
2017-03-12 |
0.1763 |
| 2017/18 |
2018-02-12 |
0.7319 |
| 2018/19 |
2019-03-05 |
0.9335 |
| 2019/20 |
2020-02-19 |
0.2393 |
