Minnesota · Crow Wing County
Mary Lake Ice-Out Dates
The ice usually goes out of Mary Lake around April 15 — the third week of April. Earliest ever: March 18 (2016). Latest: May 2 (2023).
The 2027 season
Tracking resumes when the ice forms.
Every recorded ice-out
6 years on the books, 2002–2023. Newest first.
| Year | Ice-out date |
|---|---|
| 2023 | May 2 |
| 2016 | March 18 |
| 2008 | May 1 |
| 2005 | April 11 |
| 2003 | April 15 |
| 2002 | April 19 |
When Mary freezes over
Mary Lake usually freezes over around December 10 — the second week of December. Earliest on record: November 14 (2002–03). Latest: December 17 (2015–16).
A freeze-up crosses New Year, so each row is the winter it belongs to: the winter of 2015–16 froze on December 17. Newest first.
| Winter | Ice-in date |
|---|---|
| 2015–16 | December 17 |
| 2007–08 | December 1 |
| 2004–05 | December 14 |
| 2002–03 | November 14 |
| 2001–02 | December 10 |
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.