Minnesota · Cass County
Long (Main Basin) Lake Ice-Out Dates
The ice usually goes out of Long (Main Basin) Lake around April 18 — the third week of April. Earliest ever: April 11 (2006). Latest: May 4 (2008).
April 18Usually around
April 11Earliest ever (2006)
May 4Latest ever (2008)
7Years of record (2002–2008)
The 2027 season
Tracking resumes when the ice forms.
Every recorded ice-out
7 years on the books, 2002–2008. Newest first.
| Year | Ice-out date |
|---|---|
| 2008 | May 4 |
| 2007 | April 21 |
| 2006 | April 11 |
| 2005 | April 13 |
| 2004 | April 18 |
| 2003 | April 16 |
| 2002 | April 22 |
Late ice is unpredictable — no date on this page says the ice is safe.
Records: Minnesota DNR ice-out records. Last checked August 2026.