Minnesota · Chisago County
Green (Main Basin) Lake Ice-Out Dates
The ice usually goes out of Green (Main Basin) Lake around April 11 — the second week of April. Earliest ever: March 4 (2024). Latest: May 3 (2018).
The 2027 season
Tracking resumes when the ice forms.
Every recorded ice-out
33 years on the books, 1980–2024. Newest first.
| Year | Ice-out date |
|---|---|
| 2024 | March 4 |
| 2023 | April 16 |
| 2020 | April 1 |
| 2019 | April 18 |
| 2018 | May 3 |
| 2017 | March 23 |
| 2008 | April 23 |
| 2007 | April 2 |
| 2005 | April 7 |
| 2004 | April 8 |
| 2003 | April 12 |
| 2002 | April 16 |
| 2001 | April 18 |
| 2000 | March 22 |
| 1999 | April 1 |
| 1998 | March 30 |
| 1997 | April 15 |
| 1996 | April 24 |
| 1995 | April 5 |
| 1994 | April 7 |
| 1993 | April 17 |
| 1992 | April 6 |
| 1991 | April 6 |
| 1990 | April 5 |
| 1989 | April 18 |
| 1988 | April 7 |
| 1986 | April 11 |
| 1985 | April 12 |
| 1984 | April 12 |
| 1983 | April 18 |
| 1982 | April 18 |
| 1981 | March 30 |
| 1980 | April 18 |
When Green (Main Basin) freezes over
Green (Main Basin) Lake usually freezes over around December 1 — the first week of December. Earliest on record: November 4 (1991–92). Latest: December 22 (1998–99).
A freeze-up crosses New Year, so each row is the winter it belongs to: the winter of 2024–25 froze on December 5. Newest first.
| Winter | Ice-in date |
|---|---|
| 2024–25 | December 5 |
| 2023–24 | December 3 |
| 2022–23 | November 22 |
| 2018–19 | November 20 |
| 2017–18 | December 8 |
| 2015–16 | December 18 |
| 2008–09 | November 25 |
| 2007–08 | December 1 |
| 2006–07 | December 5 |
| 2004–05 | December 14 |
| 2003–04 | December 2 |
| 2001–02 | December 20 |
| 2000–01 | November 22 |
| 1999–00 | December 21 |
| 1998–99 | December 22 |
| 1991–92 | November 4 |
| 1989–90 | November 18 |
| 1988–89 | November 20 |
| 1986–87 | November 15 |
| 1985–86 | November 21 |
| 1984–85 | November 20 |
| 1983–84 | November 25 |
| 1982–83 | December 7 |
| 1981–82 | December 7 |
| 1980–81 | December 9 |
| 1979–80 | November 30 |
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.