Minnesota · Crow Wing County
Ossawinnamakee Lake Ice-Out Dates
The ice usually goes out of Ossawinnamakee Lake around April 16 — the third week of April. Earliest ever: March 22 (2024). Latest: May 12 (2013).
The 2027 season
Tracking resumes when the ice forms.
Every recorded ice-out
26 years on the books, 1985–2024. Newest first.
| Year | Ice-out date |
|---|---|
| 2024 | March 22 |
| 2021 | April 7 |
| 2013 | May 12 |
| 2008 | May 6 |
| 2007 | April 21 |
| 2005 | April 12 |
| 2004 | April 16 |
| 2003 | April 15 |
| 2002 | April 17 |
| 2001 | April 25 |
| 2000 | March 30 |
| 1999 | April 8 |
| 1998 | April 6 |
| 1997 | April 23 |
| 1996 | May 2 |
| 1995 | April 23 |
| 1994 | April 17 |
| 1993 | April 19 |
| 1992 | April 7 |
| 1991 | April 9 |
| 1990 | April 22 |
| 1989 | April 25 |
| 1988 | April 16 |
| 1987 | April 8 |
| 1986 | April 13 |
| 1985 | April 20 |
When Ossawinnamakee freezes over
Ossawinnamakee Lake usually freezes over around November 29 — the fourth week of November. Earliest on record: November 10 (1991–92). Latest: December 14 (2004–05).
A freeze-up crosses New Year, so each row is the winter it belongs to: the winter of 2008–09 froze on December 1. Newest first.
| Winter | Ice-in date |
|---|---|
| 2008–09 | December 1 |
| 2007–08 | November 29 |
| 2006–07 | December 1 |
| 2004–05 | December 14 |
| 2003–04 | November 25 |
| 2002–03 | November 15 |
| 2001–02 | December 11 |
| 2000–01 | November 26 |
| 1999–00 | December 6 |
| 1998–99 | December 8 |
| 1997–98 | November 17 |
| 1996–97 | November 13 |
| 1995–96 | November 17 |
| 1994–95 | November 30 |
| 1993–94 | November 26 |
| 1992–93 | November 30 |
| 1991–92 | November 10 |
| 1990–91 | November 29 |
| 1989–90 | December 4 |
| 1987–88 | December 11 |
| 1986–87 | November 17 |
| 1985–86 | November 20 |
Records: Minnesota DNR ice-in records. Last checked August 2026.
Late ice is unpredictable — no date on this page says the ice is safe.
Records: Minnesota DNR ice-out records. Last checked August 2026.