IceOutDates.com

Minnesota · Itasca County

Swan (Main Basin) Lake Ice-Out Dates

The ice usually goes out of Swan (Main Basin) Lake around April 23 — the fourth week of April. Earliest ever: March 30 (2012). Latest: May 15 (2013).

Swan (Main Basin) Lake ice-out dates, 1984–2019MarAprMay1984: April 231985: April 221986: April 161987: April 131988: April 241989: May 11990: April 231991: April 211992: April 291993: April 251994: April 181995: April 261996: May 91997: April 271998: April 121999: April 212000: April 62001: April 292002: April 242003: April 262004: April 222005: April 162006: April 142007: April 252008: May 52009: April 302010: April 52011: April 282012: March 302013: May 152014: May 82015: April 172016: April 192017: April 142018: May 6Usually Apr 232019: April 272019
April 23Usually around
March 30Earliest ever (2012)
May 15Latest ever (2013)
36Years of record (1984–2019)

The 2027 season

Tracking resumes when the ice forms.

Every recorded ice-out

36 years on the books, 1984–2019. Newest first.

YearIce-out date
2019April 27
2018May 6
2017April 14
2016April 19
2015April 17
2014May 8
2013May 15
2012March 30
2011April 28
2010April 5
2009April 30
2008May 5
2007April 25
2006April 14
2005April 16
2004April 22
2003April 26
2002April 24
2001April 29
2000April 6
1999April 21
1998April 12
1997April 27
1996May 9
1995April 26
1994April 18
1993April 25
1992April 29
1991April 21
1990April 23
1989May 1
1988April 24
1987April 13
1986April 16
1985April 22
1984April 23

When Swan (Main Basin) freezes over

Swan (Main Basin) Lake usually freezes over around December 1 — the first week of December. Earliest on record: November 13 (1995–96). Latest: December 20 (1998–99).

December 1Usually freezes around
November 13 Earliest on record (1995–96)
December 20 Latest on record (1998–99)
21 Winters of record (1987–2008)

A freeze-up crosses New Year, so each row is the winter it belongs to: the winter of 2007–08 froze on December 1. Newest first.

WinterIce-in date
2007–08December 1
2006–07December 1
2005–06December 3
2004–05December 14
2003–04December 2
2002–03November 26
2001–02December 20
2000–01December 2
1999–00December 17
1998–99December 20
1997–98November 24
1996–97November 26
1995–96November 13
1994–95December 6
1993–94November 25
1992–93November 27
1991–92November 25
1990–91December 2
1989–90November 25
1988–89November 28
1987–88December 2

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.

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