Minnesota · Cook County
Gunflint Lake Ice-Out Dates
The ice usually goes out of Gunflint Lake around May 5 — the first week of May. Earliest ever: March 23 (2012). Latest: June 3 (1936).
The 2027 season
Tracking resumes when the ice forms.
Every recorded ice-out
50 years on the books, 1936–2026. Newest first.
| Year | Ice-out date |
|---|---|
| 2026 | May 4 |
| 2025 | May 7 |
| 2023 | May 12 |
| 2020 | May 5 |
| 2019 | May 11 |
| 2016 | April 25 |
| 2015 | May 3 |
| 2014 | May 20 |
| 2012 | March 23 |
| 2011 | May 10 |
| 2010 | April 10 |
| 2009 | May 7 |
| 2008 | May 12 |
| 2007 | May 1 |
| 2006 | April 17 |
| 2005 | April 18 |
| 2003 | May 5 |
| 2002 | May 4 |
| 1995 | May 4 |
| 1992 | May 8 |
| 1990 | April 26 |
| 1985 | May 1 |
| 1984 | April 28 |
| 1983 | May 7 |
| 1979 | May 18 |
| 1978 | May 15 |
| 1977 | May 2 |
| 1976 | April 15 |
| 1975 | May 10 |
| 1974 | May 11 |
| 1973 | May 1 |
| 1972 | May 18 |
| 1971 | May 6 |
| 1970 | May 14 |
| 1969 | April 25 |
| 1968 | May 5 |
| 1967 | May 2 |
| 1966 | May 26 |
| 1965 | May 2 |
| 1964 | May 3 |
| 1963 | May 8 |
| 1962 | May 10 |
| 1961 | May 8 |
| 1960 | May 6 |
| 1959 | May 5 |
| 1958 | May 1 |
| 1957 | May 10 |
| 1944 | May 10 |
| 1940 | May 14 |
| 1936 | June 3 |
When Gunflint freezes over
Gunflint Lake usually freezes over around December 9 — the second week of December. Earliest on record: November 27 (2002–03). Latest: December 23 (2001–02).
A freeze-up crosses New Year, so each row is the winter it belongs to: the winter of 2018–19 froze on December 7. Newest first.
| Winter | Ice-in date |
|---|---|
| 2018–19 | December 7 |
| 2017–18 | December 9 |
| 2016–17 | December 18 |
| 2002–03 | November 27 |
| 2001–02 | December 23 |
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.