Minnesota · Aitkin County
Blackface Lake Ice-Out Dates
The ice usually goes out of Blackface Lake around April 18 — the third week of April. Earliest ever: March 21 (2012). Latest: May 9 (2013).
The 2027 season
Tracking resumes when the ice forms.
Every recorded ice-out
18 years on the books, 2006–2024. Newest first.
| Year | Ice-out date |
|---|---|
| 2024 | March 31 |
| 2023 | May 2 |
| 2021 | March 30 |
| 2020 | April 19 |
| 2019 | April 23 |
| 2018 | May 1 |
| 2017 | April 5 |
| 2016 | April 12 |
| 2015 | April 12 |
| 2014 | April 27 |
| 2013 | May 9 |
| 2012 | March 21 |
| 2011 | April 19 |
| 2010 | March 29 |
| 2009 | April 19 |
| 2008 | April 24 |
| 2007 | April 18 |
| 2006 | April 10 |
When Blackface freezes over
Blackface Lake usually freezes over around November 17 — the third week of November. Earliest on record: November 5 (2017–18). Latest: November 30 (2009–10).
A freeze-up crosses New Year, so each row is the winter it belongs to: the winter of 2020–21 froze on November 13. Newest first.
| Winter | Ice-in date |
|---|---|
| 2020–21 | November 13 |
| 2018–19 | November 9 |
| 2017–18 | November 5 |
| 2016–17 | November 20 |
| 2015–16 | November 22 |
| 2014–15 | November 9 |
| 2013–14 | November 12 |
| 2012–13 | November 24 |
| 2011–12 | November 17 |
| 2010–11 | November 20 |
| 2009–10 | November 30 |
| 2008–09 | November 11 |
| 2007–08 | November 21 |
| 2006–07 | November 29 |
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.