400 Althagen, harbour and vicinity
| Eiswinter | Anfang | Ende | Saisonlänge | Tage mit Eis | FL.Summe | Vol.Summe | max.Dicke | Restrictions |
| 2026 | 06.Jan 2026 | 13.Feb 2026 | 39 | 39 | 28.6 | 337.5 | 12.5 | nan | 38 | 37 | 24 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2024 | 09.Jan 2024 | 11.Jan 2024 | 3 | 3 | 0.6 | 2.0 | 7.5 | nan | 3 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2023 | 12.Dec 2022 | 27.Dec 2022 | 16 | 16 | 9.8 | 198.6 | 27.5 | nan | 15 | 13 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2022 | 25.Dec 2021 | 03.Jan 2022 | 10 | 10 | 4.7 | 34.8 | 7.5 | nan | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2021 | 02.Feb 2021 | 26.Feb 2021 | 25 | 25 | 17.1 | 345.9 | 95.0 | nan | 23 | 19 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2019 | 24.Jan 2019 | 05.Feb 2019 | 13 | 13 | 8.8 | 58.1 | 7.5 | nan | 11 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2018 | 08.Jan 2018 | 30.Mar 2018 | 82 | 47 | 29.3 | 302.5 | 12.5 | nan | 38 | 25 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2017 | 09.Jan 2017 | 20.Feb 2017 | 43 | 37 | 22.9 | 57.2 | 2.5 | nan | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2014 | 24.Jan 2014 | 20.Feb 2014 | 28 | 28 | 22.8 | 354.6 | 27.5 | 15.0 | 25 | 24 | 24 | 23 | 23 | 23 | 20 | 20 | 20 | 0 |
| 2013 | 13.Dec 2012 | 04.Apr 2013 | 113 | 63 | 47.2 | 230.2 | 12.5 | nan | 52 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 0 |
| 2012 | 28.Jan 2012 | 23.Feb 2012 | 27 | 27 | 24.1 | 254.4 | 27.5 | 10.0 | 25 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 0 |
| 2011 | 01.Dec 2010 | 14.Mar 2011 | 104 | 92 | 84.0 | 762.1 | 27.5 | 5.0 | 87 | 70 | 55 | 33 | 33 | 33 | 33 | 33 | 33 | 0 |
| 2010 | 19.Dec 2009 | 22.Mar 2010 | 94 | 94 | 91.3 | 1798.2 | 27.5 | 5.0 | 92 | 92 | 92 | 92 | 92 | 92 | 92 | 92 | 92 | 0 |
| 2009 | 31.Dec 2008 | 27.Feb 2009 | 59 | 59 | 32.3 | 80.8 | 2.5 | nan | 36 | 8 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 0 |
| 2008 | 06.Jan 2008 | 13.Jan 2008 | 8 | 8 | 2.5 | 6.1 | 2.5 | nan | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2006 | 01.Jan 2006 | 28.Mar 2006 | 87 | 87 | 83.8 | 864.5 | 27.5 | 10.0 | 87 | 84 | 84 | 84 | 84 | 84 | 84 | 84 | 84 | 0 |
| 2005 | 28.Jan 2005 | 15.Mar 2005 | 47 | 36 | 14.4 | 66.0 | 7.5 | 5.0 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 0 |
| 2004 | 05.Jan 2004 | 24.Feb 2004 | 51 | 33 | 23.1 | 167.8 | 12.5 | 5.0 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 0 |
| 2003 | 09.Dec 2002 | 11.Mar 2003 | 93 | 84 | 73.2 | 858.0 | 27.5 | nan | 75 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 0 |
| 2002 | 23.Dec 2001 | 21.Jan 2002 | 30 | 27 | 21.4 | 63.4 | 7.5 | 5.0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2001 | 17.Jan 2001 | 10.Feb 2001 | 25 | 25 | 16.2 | 60.0 | 7.5 | 5.0 | 15 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2000 | 23.Jan 2000 | 27.Jan 2000 | 5 | 5 | 3.1 | 7.8 | 2.5 | nan | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1999 | 22.Nov 1998 | 24.Feb 1999 | 95 | 48 | 31.8 | 234.4 | 27.5 | 15.0 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 0 |
| 1998 | 17.Dec 1997 | 08.Feb 1998 | 54 | 21 | 13.7 | 69.2 | 7.5 | nan | 19 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 0 |
| 1997 | 21.Dec 1996 | 12.Feb 1997 | 54 | 54 | 49.6 | 1174.5 | 27.5 | 10.0 | 50 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 0 |
| 1996 | 02.Dec 1995 | 11.Apr 1996 | 132 | 132 | 124.8 | 3644.4 | 40.0 | 15.0 | 127 | 118 | 118 | 118 | 118 | 118 | 118 | 118 | 118 | 0 |
| 1995 | 05.Jan 1995 | 25.Jan 1995 | 21 | 21 | 17.3 | 62.0 | 7.5 | 5.0 | 20 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 0 |
| 1994 | 21.Nov 1993 | 10.Mar 1994 | 110 | 43 | 34.5 | 367.9 | 12.5 | 10.0 | 40 | 37 | 36 | 35 | 35 | 35 | 35 | 35 | 35 | 0 |
| 1993 | 23.Dec 1992 | 08.Mar 1993 | 76 | 31 | 20.1 | 165.2 | 27.5 | 5.0 | 19 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 11 | 0 |
| 1992 | 12.Dec 1991 | 31.Jan 1992 | 51 | 11 | 7.8 | 19.6 | 2.5 | nan | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 0 |
| 1991 | 18.Jan 1991 | 09.Mar 1991 | 51 | 42 | 40.5 | 346.2 | 12.5 | 15.0 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 0 |
| 1990 | 05.Jan 1990 | 05.Jan 1990 | 1 | 1 | 0.1 | 0.2 | 2.5 | nan | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1989 | 02.Dec 1988 | 08.Dec 1988 | 7 | 7 | 4.8 | 21.9 | 7.5 | nan | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 0 |
| 1988 | 12.Dec 1987 | 18.Dec 1987 | 7 | 7 | 6.1 | 15.2 | 2.5 | nan | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 0 |
| 1987 | 25.Dec 1986 | 29.Mar 1987 | 95 | 91 | 85.1 | 2375.2 | 40.0 | 40.0 | 86 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 0 |
| 1986 | 30.Nov 1985 | 22.Mar 1986 | 113 | 80 | 74.5 | 1253.2 | 28.0 | 30.0 | 78 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 0 |
| 1985 | 18.Nov 1984 | 28.Mar 1985 | 131 | 110 | 85.0 | 1527.5 | 27.5 | 15.0 | 96 | 91 | 91 | 91 | 91 | 91 | 91 | 91 | 91 | 0 |
| 1984 | 14.Dec 1983 | 06.Mar 1984 | 84 | 45 | 35.6 | 129.1 | 7.5 | nan | 40 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 0 |
| 1983 | 14.Feb 1983 | 03.Mar 1983 | 18 | 18 | 12.9 | 32.4 | 2.5 | nan | 12 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1982 | 12.Dec 1981 | 13.Mar 1982 | 92 | 92 | 88.9 | 2127.2 | 40.0 | 50.0 | 86 | 84 | 84 | 84 | 84 | 84 | 84 | 84 | 73 | 0 |
| 1981 | 01.Dec 1980 | 07.Mar 1981 | 97 | 32 | 0.0 | 0.0 | 0.0 | nan | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 0 |
| 1980 | 04.Jan 1980 | 29.Feb 1980 | 57 | 57 | 0.0 | 0.0 | 0.0 | 15.0 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 0 |
| 1979 | 08.Dec 1978 | 31.Mar 1979 | 114 | 110 | 0.0 | 0.0 | 0.0 | 30.0 | 105 | 105 | 105 | 105 | 105 | 105 | 105 | 105 | 105 | 0 |
| 1978 | 06.Feb 1978 | 23.Mar 1978 | 46 | 32 | 0.0 | 0.0 | 0.0 | 15.0 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 0 |
| 1977 | 29.Dec 1976 | 24.Feb 1977 | 58 | 58 | 0.0 | 0.0 | 0.0 | nan | 50 | 34 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1976 | 26.Nov 1975 | 21.Mar 1976 | 117 | 53 | 0.0 | 0.0 | 0.0 | nan | 35 | 22 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1975 | 09.Feb 1975 | 26.Feb 1975 | 18 | 10 | 0.0 | 0.0 | 0.0 | nan | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1974 | 03.Dec 1973 | 14.Jan 1974 | 43 | 8 | 0.0 | 0.0 | 0.0 | nan | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1973 | 24.Dec 1972 | 05.Feb 1973 | 44 | 44 | 0.0 | 0.0 | 0.0 | nan | 44 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 0 |
| 1972 | 12.Jan 1972 | 16.Mar 1972 | 65 | 65 | 0.0 | 0.0 | 0.0 | nan | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 0 |
| 1971 | 25.Dec 1970 | 12.Mar 1971 | 78 | 51 | 0.0 | 0.0 | 0.0 | nan | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 0 |
| 1970 | 05.Dec 1969 | 15.Apr 1970 | 132 | 132 | 0.0 | 0.0 | 0.0 | nan | 124 | 124 | 124 | 124 | 124 | 124 | 124 | 124 | 124 | 0 |
| 1969 | 11.Dec 1968 | 02.Apr 1969 | 113 | 113 | 0.0 | 0.0 | 0.0 | 30.0 | 113 | 112 | 112 | 112 | 112 | 112 | 112 | 112 | 112 | 0 |
| 1968 | 10.Dec 1967 | 08.Mar 1968 | 90 | 52 | 0.0 | 0.0 | 0.0 | 15.0 | 44 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 0 |
| 1967 | 28.Dec 1966 | 23.Feb 1967 | 58 | 27 | 0.0 | 0.0 | 0.0 | nan | 21 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 0 |
| 1966 | 18.Nov 1965 | 27.Feb 1966 | 102 | 83 | 0.0 | 0.0 | 0.0 | 15.0 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 0 |
| 1965 | 10.Nov 1964 | 23.Mar 1965 | 134 | 56 | 0.0 | 0.0 | 0.0 | nan | 50 | 35 | 34 | 32 | 32 | 32 | 32 | 32 | 32 | 0 |
| 1964 | 03.Dec 1963 | 31.Mar 1964 | 120 | 106 | 0.0 | 0.0 | 0.0 | 15.0 | 90 | 87 | 87 | 87 | 87 | 87 | 87 | 87 | 87 | 0 |
| 1963 | 03.Dec 1962 | 06.Apr 1963 | 125 | 112 | 0.0 | 0.0 | 0.0 | nan | 109 | 108 | 108 | 108 | 108 | 108 | 108 | 108 | 106 | 0 |
| 1962 | 20.Nov 1961 | 01.Apr 1962 | 133 | 85 | 0.0 | 0.0 | 0.0 | 15.0 | 73 | 69 | 67 | 67 | 67 | 67 | 67 | 67 | 66 | 0 |
| 1961 | 05.Jan 1961 | 11.Feb 1961 | 38 | 27 | 0.0 | 0.0 | 0.0 | 15.0 | 25 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 0 |
| 1960 | 07.Dec 1959 | 16.Mar 1960 | 101 | 91 | 0.0 | 0.0 | 0.0 | 15.0 | 86 | 84 | 84 | 84 | 84 | 84 | 84 | 84 | 83 | 0 |
| 1959 | 13.Dec 1958 | 20.Feb 1959 | 70 | 45 | 0.0 | 0.0 | 0.0 | 5.0 | 25 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 10 | 0 |
| 1958 | 12.Dec 1957 | 24.Mar 1958 | 103 | 80 | 0.0 | 0.0 | 0.0 | nan | 67 | 55 | 54 | 54 | 54 | 54 | 54 | 54 | 53 | 0 |
| 1957 | 21.Nov 1956 | 13.Mar 1957 | 113 | 31 | 0.0 | 0.0 | 0.0 | nan | 17 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 0 |
| 1956 | 12.Dec 1955 | 25.Mar 1956 | 105 | 74 | 0.0 | 0.0 | 0.0 | 30.0 | 64 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 59 | 0 |
| 1955 | 24.Nov 1954 | 03.Apr 1955 | 131 | 98 | 0.0 | 0.0 | 0.0 | nan | 92 | 84 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 0 |
| 1954 | 26.Nov 1953 | 24.Mar 1954 | 119 | 89 | 0.0 | 0.0 | 0.0 | 35.0 | 80 | 69 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 0 |
| 1953 | 29.Nov 1952 | 23.Feb 1953 | 87 | 79 | 0.0 | 0.0 | 0.0 | 8.0 | 73 | 63 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 0 |
| 1952 | 19.Jan 1952 | 11.Mar 1952 | 53 | 35 | 0.0 | 0.0 | 0.0 | 10.0 | 29 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 0 |
| 1951 | 08.Dec 1950 | 21.Mar 1951 | 104 | 95 | 0.0 | 0.0 | 0.0 | nan | 87 | 70 | 68 | 63 | 63 | 63 | 63 | 63 | 63 | 0 |