IceOutDates.com

Maine

Portage Lake Ice-Out Dates

The ice usually goes out of Portage Lake around May 6 — the first week of May. Earliest ever: April 14 (1945). Latest: May 26 (1926).

Portage Lake ice-out dates, 1925–2023AprMay1925: May 101926: May 261927: April 301928: May 161929: May 101930: May 71931: May 11932: May 81933: May 71934: April 301935: May 121936: May 31937: May 131938: April 281939: May 131940: May 111941: May 21942: May 41943: May 191944: May 81945: April 141946: May 111947: May 181948: May 51949: May 41950: May 71951: April 291952: May 81953: May 51954: May 21955: May 31956: May 121957: May 21959: May 91960: May 61961: May 151962: May 101963: May 111964: May 61965: May 41966: May 91967: May 71968: May 21969: May 111970: May 131971: May 131972: May 191973: May 71974: May 211975: May 151976: May 21977: May 121978: May 121979: May 31980: May 41981: May 11982: May 91983: May 11984: May 81985: May 61986: April 281987: April 201988: April 281989: May 51990: April 301991: May 51992: May 111993: May 31994: May 121995: May 41996: May 31997: May 61998: April 301999: May 32000: April 302001: May 52002: April 272003: May 72004: April 272005: May 72006: April 252007: May 102008: May 4Usually May 62023: April 302023
May 6Usually around
April 14Earliest ever (1945)
May 26Latest ever (1926)
84Years of record (1925–2023)

The 2027 season

Tracking resumes when the ice forms.

Every recorded ice-out

84 years on the books, 1925–2023. Newest first.

YearIce-out date
2023April 30
2008May 4
2007May 10
2006April 25
2005May 7
2004April 27
2003May 7
2002April 27
2001May 5
2000April 30
1999May 3
1998April 30
1997May 6
1996May 3
1995May 4
1994May 12
1993May 3
1992May 11
1991May 5
1990April 30
1989May 5
1988April 28
1987April 20
1986April 28
1985May 6
1984May 8
1983May 1
1982May 9
1981May 1
1980May 4
1979May 3
1978May 12
1977May 12
1976May 2
1975May 15
1974May 21
1973May 7
1972May 19
1971May 13
1970May 13
1969May 11
1968May 2
1967May 7
1966May 9
1965May 4
1964May 6
1963May 11
1962May 10
1961May 15
1960May 6
1959May 9
1957May 2
1956May 12
1955May 3
1954May 2
1953May 5
1952May 8
1951April 29
1950May 7
1949May 4
1948May 5
1947May 18
1946May 11
1945April 14
1944May 8
1943May 19
1942May 4
1941May 2
1940May 11
1939May 13
1938April 28
1937May 13
1936May 3
1935May 12
1934April 30
1933May 7
1932May 8
1931May 1
1930May 7
1929May 10
1928May 16
1927April 30
1926May 26
1925May 10

Late ice is unpredictable — no date on this page says the ice is safe.

Records: USGS Open-File Report 2010-1214 (Hodgkins, 2010), Maine Bureau of Parks and Lands ice-out reports. Last checked August 2026.

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