Minnesota · Hubbard County
Mary Lake Ice-Out Dates
The ice usually goes out of Mary Lake around April 18 — the third week of April. Earliest ever: March 23 (2012). Latest: May 12 (2013).
The 2027 season
Tracking resumes when the ice forms.
Every recorded ice-out
31 years on the books, 1988–2026. Newest first.
| Year | Ice-out date |
|---|---|
| 2026 | April 19 |
| 2025 | April 16 |
| 2024 | April 7 |
| 2023 | May 2 |
| 2022 | May 7 |
| 2021 | April 5 |
| 2020 | April 26 |
| 2019 | April 25 |
| 2018 | April 30 |
| 2017 | April 6 |
| 2016 | April 1 |
| 2015 | April 14 |
| 2014 | April 30 |
| 2013 | May 12 |
| 2012 | March 23 |
| 2004 | April 19 |
| 2003 | April 16 |
| 2002 | April 18 |
| 2001 | April 27 |
| 2000 | April 6 |
| 1999 | April 14 |
| 1998 | April 11 |
| 1996 | May 5 |
| 1995 | April 24 |
| 1994 | April 18 |
| 1993 | April 18 |
| 1992 | April 11 |
| 1991 | April 13 |
| 1990 | April 24 |
| 1989 | April 29 |
| 1988 | April 17 |
When Mary freezes over
Mary Lake usually freezes over around November 22 — the fourth week of November. Earliest on record: November 4 (1991–92). Latest: December 2 (1987–88).
A freeze-up crosses New Year, so each row is the winter it belongs to: the winter of 2023–24 froze on November 28. Newest first.
| Winter | Ice-in date |
|---|---|
| 2023–24 | November 28 |
| 2022–23 | November 23 |
| 2021–22 | November 22 |
| 2020–21 | November 30 |
| 2019–20 | November 12 |
| 2018–19 | November 13 |
| 2017–18 | November 22 |
| 2004–05 | November 27 |
| 2003–04 | November 25 |
| 2002–03 | November 13 |
| 2001–02 | November 30 |
| 2000–01 | November 22 |
| 1999–00 | November 29 |
| 1997–98 | November 12 |
| 1994–95 | November 26 |
| 1993–94 | November 8 |
| 1992–93 | November 14 |
| 1991–92 | November 4 |
| 1990–91 | November 26 |
| 1989–90 | November 17 |
| 1987–88 | December 2 |
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.