Minnesota · St. Louis County
Thompson Lake Ice-Out Dates
The ice usually goes out of Thompson Lake around April 23 — the fourth week of April. Earliest ever: April 12 (2017). Latest: May 7 (2022).
April 23Usually around
April 12Earliest ever (2017)
May 7Latest ever (2022)
11Years of record (2002–2023)
The 2027 season
Tracking resumes when the ice forms.
Every recorded ice-out
11 years on the books, 2002–2023. Newest first.
| Year | Ice-out date |
|---|---|
| 2023 | May 3 |
| 2022 | May 7 |
| 2020 | April 26 |
| 2017 | April 12 |
| 2008 | May 1 |
| 2007 | April 23 |
| 2006 | April 13 |
| 2005 | April 14 |
| 2004 | April 21 |
| 2003 | April 25 |
| 2002 | April 21 |
Late ice is unpredictable — no date on this page says the ice is safe.
Records: Minnesota DNR ice-out records. Last checked August 2026.