Minnesota · Lake County
Flat Horn Lake Ice-Out Dates
The ice usually goes out of Flat Horn Lake around April 21 — the third week of April. Earliest ever: April 12 (1987). Latest: May 3 (1983).
April 21Usually around
April 12Earliest ever (1987)
May 3Latest ever (1983)
8Years of record (1976–1988)
The 2027 season
Tracking resumes when the ice forms.
Every recorded ice-out
8 years on the books, 1976–1988. Newest first.
| Year | Ice-out date |
|---|---|
| 1988 | April 28 |
| 1987 | April 12 |
| 1986 | April 17 |
| 1984 | April 21 |
| 1983 | May 3 |
| 1982 | April 28 |
| 1978 | May 2 |
| 1976 | April 17 |
Late ice is unpredictable — no date on this page says the ice is safe.
Records: Minnesota DNR ice-out records. Last checked August 2026.