Minnesota · Cottonwood County
Mountain Lake Ice-Out Dates
The ice usually goes out of Mountain Lake around March 29 — the fourth week of March. Earliest ever: March 15 (2016). Latest: April 29 (2018).
The 2027 season
Tracking resumes when the ice forms.
Every recorded ice-out
9 years on the books, 1999–2020. Newest first.
| Year | Ice-out date |
|---|---|
| 2020 | March 29 |
| 2019 | April 5 |
| 2018 | April 29 |
| 2017 | March 20 |
| 2016 | March 15 |
| 2008 | April 15 |
| 2005 | April 4 |
| 2004 | March 22 |
| 1999 | March 27 |
When Mountain freezes over
Mountain Lake usually freezes over around November 27 — the fourth week of November. Earliest on record: November 9 (2018–19). Latest: December 19 (2004–05).
A freeze-up crosses New Year, so each row is the winter it belongs to: the winter of 2022–23 froze on November 27. Newest first.
| Winter | Ice-in date |
|---|---|
| 2022–23 | November 27 |
| 2018–19 | November 9 |
| 2017–18 | December 7 |
| 2015–16 | December 18 |
| 2007–08 | November 21 |
| 2004–05 | December 19 |
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.