| Return to Historical Water Level Data | Retour a Données historiques des niveaux de l'eau | |||||||||||||||
| Yearly | Minimum | Maximum | ||||||||||||||
| Lakes Michigan-Huron monthly mean water levels in metres referred to IGLD 1985 | Average | Monthly | Monthly | |||||||||||||
| Lacs Michigan-Huron moyennes mensuelles du niveau d'eau en mètres par rapport au SRIGL (1985) | ||||||||||||||||
| Year | January | February | March | April | May | June | July | August | September | October | November | December | Moyenne | mensuelle | mensuelle | Range |
| Année | Janvier | Février | Mars | Avril | Mai | Juin | Juillet | Août | Septembre | Octobre | Novembre | Décembre | Annuelle | minimale | maximale | Intervalle |
| 1918 | 176.71 | 176.73 | 176.80 | 176.89 | 176.99 | 177.07 | 177.07 | 177.01 | 176.94 | 176.83 | 176.82 | 176.78 | 176.89 | 176.71 | 177.07 | 0.36 |
| 1919 | 176.74 | 176.68 | 176.68 | 176.77 | 176.89 | 176.92 | 176.88 | 176.83 | 176.72 | 176.66 | 176.62 | 176.55 | 176.74 | 176.55 | 176.92 | 0.37 |
| 1920 | 176.50 | 176.47 | 176.49 | 176.63 | 176.68 | 176.73 | 176.79 | 176.76 | 176.73 | 176.65 | 176.57 | 176.50 | 176.62 | 176.47 | 176.79 | 0.32 |
| 1921 | 176.44 | 176.42 | 176.42 | 176.54 | 176.63 | 176.64 | 176.60 | 176.54 | 176.50 | 176.44 | 176.35 | 176.34 | 176.49 | 176.34 | 176.64 | 0.30 |
| 1922 | 176.27 | 176.24 | 176.28 | 176.43 | 176.57 | 176.63 | 176.67 | 176.63 | 176.56 | 176.46 | 176.35 | 176.25 | 176.44 | 176.24 | 176.67 | 0.43 |
| 1923 | 176.16 | 176.13 | 176.15 | 176.22 | 176.34 | 176.41 | 176.42 | 176.40 | 176.36 | 176.29 | 176.18 | 176.11 | 176.26 | 176.11 | 176.42 | 0.31 |
| 1924 | 176.06 | 176.05 | 176.06 | 176.11 | 176.24 | 176.28 | 176.33 | 176.38 | 176.33 | 176.24 | 176.12 | 176.04 | 176.19 | 176.04 | 176.38 | 0.34 |
| 1925 | 175.95 | 175.92 | 175.94 | 175.96 | 175.98 | 176.00 | 176.03 | 175.99 | 175.92 | 175.84 | 175.76 | 175.74 | 175.92 | 175.74 | 176.03 | 0.29 |
| 1926 | 175.69 | 175.66 | 175.69 | 175.79 | 175.88 | 175.99 | 176.02 | 176.03 | 176.02 | 175.97 | 175.93 | 175.95 | 175.88 | 175.66 | 176.03 | 0.37 |
| 1927 | 175.92 | 175.94 | 176.00 | 176.08 | 176.20 | 176.30 | 176.34 | 176.31 | 176.22 | 176.21 | 176.14 | 176.12 | 176.15 | 175.92 | 176.34 | 0.42 |
| 1928 | 176.10 | 176.11 | 176.15 | 176.29 | 176.44 | 176.50 | 176.59 | 176.62 | 176.60 | 176.61 | 176.65 | 176.66 | 176.44 | 176.10 | 176.66 | 0.56 |
| 1929 | 176.65 | 176.63 | 176.65 | 176.86 | 177.07 | 177.15 | 177.18 | 177.13 | 177.03 | 176.90 | 176.82 | 176.68 | 176.90 | 176.63 | 177.18 | 0.55 |
| 1930 | 176.64 | 176.64 | 176.66 | 176.69 | 176.76 | 176.79 | 176.84 | 176.80 | 176.69 | 176.57 | 176.42 | 176.31 | 176.65 | 176.31 | 176.84 | 0.53 |
| 1931 | 176.21 | 176.17 | 176.16 | 176.17 | 176.19 | 176.20 | 176.20 | 176.14 | 176.05 | 176.02 | 175.97 | 175.94 | 176.12 | 175.94 | 176.21 | 0.27 |
| 1932 | 175.94 | 175.93 | 175.91 | 175.95 | 176.02 | 176.04 | 176.05 | 176.01 | 175.95 | 175.87 | 175.84 | 175.78 | 175.94 | 175.78 | 176.05 | 0.27 |
| 1933 | 175.74 | 175.73 | 175.73 | 175.83 | 175.99 | 176.06 | 176.08 | 176.02 | 175.92 | 175.83 | 175.76 | 175.72 | 175.87 | 175.72 | 176.08 | 0.36 |
| 1934 | 175.70 | 175.67 | 175.67 | 175.74 | 175.81 | 175.84 | 175.87 | 175.84 | 175.82 | 175.76 | 175.72 | 175.76 | 175.77 | 175.67 | 175.87 | 0.20 |
| 1935 | 175.74 | 175.74 | 175.78 | 175.85 | 175.91 | 175.97 | 176.05 | 176.04 | 175.96 | 175.91 | 175.89 | 175.85 | 175.89 | 175.74 | 176.05 | 0.31 |
| 1936 | 175.83 | 175.81 | 175.85 | 175.92 | 176.01 | 176.07 | 176.06 | 176.00 | 176.02 | 175.99 | 175.91 | 175.80 | 175.94 | 175.80 | 176.07 | 0.27 |
| 1937 | 175.82 | 175.82 | 175.84 | 175.86 | 176.00 | 176.04 | 176.06 | 176.04 | 176.01 | 175.92 | 175.86 | 175.80 | 175.92 | 175.80 | 176.06 | 0.26 |
| 1938 | 175.76 | 175.85 | 175.92 | 176.08 | 176.16 | 176.28 | 176.33 | 176.35 | 176.34 | 176.28 | 176.21 | 176.13 | 176.14 | 175.76 | 176.35 | 0.59 |
| 1939 | 176.07 | 176.07 | 176.10 | 176.15 | 176.29 | 176.40 | 176.45 | 176.46 | 176.44 | 176.35 | 176.27 | 176.18 | 176.27 | 176.07 | 176.46 | 0.39 |
| 1940 | 176.09 | 176.07 | 176.03 | 176.04 | 176.12 | 176.20 | 176.25 | 176.27 | 176.26 | 176.19 | 176.11 | 176.07 | 176.14 | 176.03 | 176.27 | 0.24 |
| 1941 | 176.08 | 176.08 | 176.06 | 176.09 | 176.17 | 176.19 | 176.16 | 176.11 | 176.09 | 176.12 | 176.17 | 176.14 | 176.12 | 176.06 | 176.19 | 0.13 |
| 1942 | 176.12 | 176.13 | 176.17 | 176.29 | 176.38 | 176.50 | 176.52 | 176.50 | 176.44 | 176.38 | 176.33 | 176.25 | 176.33 | 176.12 | 176.52 | 0.40 |
| 1943 | 176.25 | 176.27 | 176.33 | 176.43 | 176.58 | 176.77 | 176.88 | 176.92 | 176.88 | 176.80 | 176.75 | 176.66 | 176.63 | 176.25 | 176.92 | 0.67 |
| 1944 | 176.57 | 176.54 | 176.54 | 176.57 | 176.64 | 176.69 | 176.72 | 176.68 | 176.64 | 176.60 | 176.52 | 176.45 | 176.60 | 176.45 | 176.72 | 0.27 |
| 1945 | 176.36 | 176.33 | 176.36 | 176.45 | 176.55 | 176.72 | 176.78 | 176.74 | 176.70 | 176.66 | 176.62 | 176.57 | 176.57 | 176.33 | 176.78 | 0.45 |
| 1946 | 176.56 | 176.57 | 176.65 | 176.70 | 176.70 | 176.75 | 176.77 | 176.69 | 176.60 | 176.49 | 176.42 | 176.32 | 176.60 | 176.32 | 176.77 | 0.45 |
| 1947 | 176.28 | 176.28 | 176.25 | 176.39 | 176.57 | 176.72 | 176.80 | 176.81 | 176.77 | 176.72 | 176.65 | 176.56 | 176.57 | 176.25 | 176.81 | 0.56 |
| 1948 | 176.48 | 176.42 | 176.47 | 176.61 | 176.72 | 176.73 | 176.72 | 176.67 | 176.57 | 176.40 | 176.32 | 176.26 | 176.53 | 176.26 | 176.73 | 0.47 |
| 1949 | 176.20 | 176.19 | 176.19 | 176.26 | 176.31 | 176.34 | 176.38 | 176.34 | 176.22 | 176.14 | 176.02 | 175.94 | 176.21 | 175.94 | 176.38 | 0.44 |
| 1950 | 175.96 | 175.99 | 176.02 | 176.17 | 176.27 | 176.34 | 176.42 | 176.44 | 176.43 | 176.40 | 176.34 | 176.35 | 176.26 | 175.96 | 176.44 | 0.48 |
| 1951 | 176.34 | 176.34 | 176.41 | 176.58 | 176.75 | 176.82 | 176.91 | 176.93 | 176.92 | 176.93 | 176.95 | 176.95 | 176.74 | 176.34 | 176.95 | 0.61 |
| 1952 | 176.95 | 176.96 | 176.96 | 177.08 | 177.17 | 177.22 | 177.26 | 177.28 | 177.22 | 177.06 | 176.94 | 176.92 | 177.08 | 176.92 | 177.28 | 0.36 |
| 1953 | 176.85 | 176.82 | 176.83 | 176.91 | 177.00 | 177.07 | 177.12 | 177.11 | 177.02 | 176.92 | 176.81 | 176.74 | 176.93 | 176.74 | 177.12 | 0.38 |
| 1954 | 176.63 | 176.60 | 176.64 | 176.71 | 176.83 | 176.92 | 176.96 | 176.94 | 176.90 | 176.98 | 176.95 | 176.89 | 176.83 | 176.60 | 176.98 | 0.38 |
| 1955 | 176.83 | 176.78 | 176.76 | 176.82 | 176.88 | 176.91 | 176.88 | 176.79 | 176.64 | 176.54 | 176.46 | 176.38 | 176.72 | 176.38 | 176.91 | 0.53 |
| 1956 | 176.31 | 176.30 | 176.32 | 176.37 | 176.50 | 176.57 | 176.62 | 176.62 | 176.56 | 176.45 | 176.37 | 176.29 | 176.44 | 176.29 | 176.62 | 0.33 |
| 1957 | 176.22 | 176.19 | 176.17 | 176.20 | 176.28 | 176.35 | 176.43 | 176.38 | 176.33 | 176.24 | 176.21 | 176.16 | 176.26 | 176.16 | 176.43 | 0.27 |
| 1958 | 176.15 | 176.13 | 176.12 | 176.14 | 176.12 | 176.12 | 176.15 | 176.11 | 176.07 | 175.98 | 175.91 | 175.81 | 176.07 | 175.81 | 176.15 | 0.34 |
| 1959 | 175.75 | 175.75 | 175.79 | 175.92 | 176.06 | 176.11 | 176.12 | 176.12 | 176.10 | 176.10 | 176.13 | 176.12 | 176.01 | 175.75 | 176.13 | 0.38 |
| 1960 | 176.14 | 176.16 | 176.14 | 176.24 | 176.50 | 176.64 | 176.72 | 176.77 | 176.73 | 176.64 | 176.57 | 176.48 | 176.48 | 176.14 | 176.77 | 0.63 |
| 1961 | 176.38 | 176.31 | 176.33 | 176.36 | 176.42 | 176.44 | 176.46 | 176.45 | 176.43 | 176.38 | 176.32 | 176.26 | 176.38 | 176.26 | 176.46 | 0.20 |
| 1962 | 176.20 | 176.17 | 176.19 | 176.26 | 176.34 | 176.37 | 176.36 | 176.32 | 176.26 | 176.17 | 176.06 | 175.97 | 176.22 | 175.97 | 176.37 | 0.40 |
| 1963 | 175.89 | 175.85 | 175.85 | 175.94 | 176.02 | 176.06 | 176.04 | 176.03 | 175.98 | 175.90 | 175.80 | 175.71 | 175.92 | 175.71 | 176.06 | 0.35 |
| 1964 | 175.63 | 175.59 | 175.58 | 175.61 | 175.74 | 175.76 | 175.78 | 175.77 | 175.76 | 175.70 | 175.65 | 175.62 | 175.68 | 175.58 | 175.78 | 0.20 |
| 1965 | 175.60 | 175.62 | 175.67 | 175.77 | 175.94 | 176.00 | 176.02 | 176.04 | 176.07 | 176.10 | 176.07 | 176.09 | 175.92 | 175.60 | 176.10 | 0.50 |
| 1966 | 176.10 | 176.08 | 176.13 | 176.20 | 176.26 | 176.30 | 176.28 | 176.24 | 176.17 | 176.08 | 176.01 | 176.08 | 176.16 | 176.01 | 176.30 | 0.29 |
| 1967 | 176.07 | 176.07 | 176.06 | 176.23 | 176.35 | 176.45 | 176.50 | 176.48 | 176.40 | 176.34 | 176.34 | 176.32 | 176.30 | 176.06 | 176.50 | 0.44 |
| 1968 | 176.29 | 176.30 | 176.27 | 176.35 | 176.40 | 176.47 | 176.55 | 176.58 | 176.60 | 176.57 | 176.50 | 176.48 | 176.45 | 176.27 | 176.60 | 0.33 |
| 1969 | 176.47 | 176.47 | 176.45 | 176.54 | 176.70 | 176.82 | 176.94 | 176.95 | 176.86 | 176.78 | 176.73 | 176.64 | 176.70 | 176.45 | 176.95 | 0.50 |
| 1970 | 176.59 | 176.56 | 176.53 | 176.58 | 176.68 | 176.76 | 176.80 | 176.78 | 176.77 | 176.73 | 176.69 | 176.67 | 176.68 | 176.53 | 176.80 | 0.27 |
| 1971 | 176.63 | 176.62 | 176.68 | 176.76 | 176.86 | 176.94 | 176.96 | 176.96 | 176.90 | 176.84 | 176.76 | 176.75 | 176.80 | 176.62 | 176.96 | 0.34 |
| 1972 | 176.73 | 176.65 | 176.65 | 176.72 | 176.88 | 176.93 | 176.99 | 177.05 | 177.07 | 177.03 | 177.00 | 176.96 | 176.89 | 176.65 | 177.07 | 0.42 |
| 1973 | 176.98 | 176.95 | 176.98 | 177.10 | 177.20 | 177.30 | 177.30 | 177.29 | 177.21 | 177.13 | 177.04 | 177.00 | 177.12 | 176.95 | 177.30 | 0.35 |
| 1974 | 176.95 | 176.97 | 177.00 | 177.07 | 177.19 | 177.28 | 177.32 | 177.26 | 177.15 | 177.04 | 176.98 | 176.91 | 177.09 | 176.91 | 177.32 | 0.41 |
| 1975 | 176.87 | 176.86 | 176.87 | 176.92 | 177.06 | 177.14 | 177.15 | 177.10 | 177.07 | 176.95 | 176.87 | 176.82 | 176.97 | 176.82 | 177.15 | 0.33 |
| 1976 | 176.76 | 176.75 | 176.87 | 177.02 | 177.11 | 177.15 | 177.15 | 177.08 | 176.95 | 176.80 | 176.64 | 176.51 | 176.90 | 176.51 | 177.15 | 0.64 |
| 1977 | 176.42 | 176.38 | 176.44 | 176.56 | 176.57 | 176.55 | 176.56 | 176.54 | 176.53 | 176.50 | 176.50 | 176.51 | 176.50 | 176.38 | 176.57 | 0.19 |
| 1978 | 176.48 | 176.45 | 176.43 | 176.51 | 176.61 | 176.67 | 176.69 | 176.68 | 176.71 | 176.70 | 176.62 | 176.54 | 176.59 | 176.43 | 176.71 | 0.28 |
| 1979 | 176.51 | 176.48 | 176.54 | 176.71 | 176.88 | 176.95 | 176.98 | 177.00 | 176.96 | 176.88 | 176.83 | 176.81 | 176.79 | 176.48 | 177.00 | 0.52 |
| 1980 | 176.78 | 176.72 | 176.68 | 176.77 | 176.84 | 176.90 | 176.93 | 176.93 | 176.90 | 176.82 | 176.72 | 176.65 | 176.80 | 176.65 | 176.93 | 0.28 |
| 1981 | 176.59 | 176.56 | 176.60 | 176.67 | 176.75 | 176.80 | 176.82 | 176.81 | 176.80 | 176.73 | 176.66 | 176.59 | 176.70 | 176.56 | 176.82 | 0.26 |
| 1982 | 176.51 | 176.46 | 176.45 | 176.56 | 176.62 | 176.66 | 176.69 | 176.69 | 176.65 | 176.62 | 176.60 | 176.67 | 176.60 | 176.45 | 176.69 | 0.24 |
| 1983 | 176.67 | 176.66 | 176.68 | 176.76 | 176.90 | 177.02 | 177.02 | 176.98 | 176.93 | 176.87 | 176.77 | 176.74 | 176.83 | 176.66 | 177.02 | 0.36 |
| 1984 | 176.70 | 176.70 | 176.72 | 176.81 | 176.91 | 177.01 | 177.06 | 177.04 | 177.02 | 176.96 | 176.93 | 176.88 | 176.90 | 176.70 | 177.06 | 0.36 |
| 1985 | 176.88 | 176.86 | 176.98 | 177.14 | 177.24 | 177.25 | 177.23 | 177.19 | 177.20 | 177.16 | 177.19 | 177.20 | 177.13 | 176.86 | 177.25 | 0.39 |
| 1986 | 177.14 | 177.11 | 177.12 | 177.23 | 177.28 | 177.33 | 177.39 | 177.39 | 177.38 | 177.50 | 177.38 | 177.26 | 177.29 | 177.11 | 177.50 | 0.39 |
| 1987 | 177.18 | 177.10 | 177.06 | 177.07 | 177.06 | 177.07 | 177.04 | 176.99 | 176.90 | 176.79 | 176.70 | 176.68 | 176.97 | 176.68 | 177.18 | 0.50 |
| 1988 | 176.63 | 176.60 | 176.57 | 176.67 | 176.70 | 176.67 | 176.61 | 176.57 | 176.48 | 176.42 | 176.43 | 176.42 | 176.56 | 176.42 | 176.70 | 0.28 |
| 1989 | 176.38 | 176.33 | 176.32 | 176.41 | 176.44 | 176.56 | 176.57 | 176.54 | 176.47 | 176.34 | 176.27 | 176.18 | 176.40 | 176.18 | 176.57 | 0.39 |
| 1990 | 176.15 | 176.16 | 176.19 | 176.27 | 176.35 | 176.44 | 176.51 | 176.49 | 176.45 | 176.41 | 176.39 | 176.39 | 176.35 | 176.15 | 176.51 | 0.36 |
| 1991 | 176.36 | 176.31 | 176.33 | 176.48 | 176.60 | 176.66 | 176.64 | 176.59 | 176.48 | 176.40 | 176.38 | 176.40 | 176.47 | 176.31 | 176.66 | 0.35 |
| 1992 | 176.38 | 176.36 | 176.38 | 176.44 | 176.53 | 176.52 | 176.54 | 176.53 | 176.52 | 176.49 | 176.52 | 176.54 | 176.48 | 176.36 | 176.54 | 0.18 |
| 1993 | 176.54 | 176.51 | 176.48 | 176.58 | 176.70 | 176.82 | 176.91 | 176.88 | 176.83 | 176.76 | 176.70 | 176.64 | 176.70 | 176.48 | 176.91 | 0.43 |
| 1994 | 176.57 | 176.56 | 176.59 | 176.63 | 176.70 | 176.72 | 176.82 | 176.81 | 176.78 | 176.71 | 176.66 | 176.59 | 176.68 | 176.56 | 176.82 | 0.26 |
| 1995 | 176.53 | 176.49 | 176.47 | 176.49 | 176.58 | 176.64 | 176.63 | 176.64 | 176.55 | 176.46 | 176.44 | 176.41 | 176.53 | 176.41 | 176.64 | 0.23 |
| 1996 | 176.37 | 176.39 | 176.39 | 176.46 | 176.63 | 176.76 | 176.83 | 176.84 | 176.82 | 176.80 | 176.79 | 176.77 | 176.65 | 176.37 | 176.84 | 0.47 |
| 1997 | 176.79 | 176.82 | 176.89 | 176.95 | 177.07 | 177.13 | 177.19 | 177.16 | 177.12 | 177.02 | 176.89 | 176.79 | 176.99 | 176.79 | 177.19 | 0.40 |
| 1998 | 176.74 | 176.71 | 176.74 | 176.89 | 176.91 | 176.90 | 176.88 | 176.79 | 176.68 | 176.55 | 176.44 | 176.36 | 176.72 | 176.36 | 176.91 | 0.55 |
| 1999 | 176.27 | 176.28 | 176.24 | 176.25 | 176.28 | 176.34 | 176.40 | 176.36 | 176.24 | 176.14 | 176.04 | 175.99 | 176.24 | 175.99 | 176.40 | 0.41 |
| 2000 | 175.92 | 175.87 | 175.90 | 175.92 | 176.00 | 176.11 | 176.13 | 176.13 | 176.09 | 175.98 | 175.89 | 175.81 | 175.98 | 175.81 | 176.13 | 0.32 |
| 2001 | 175.77 | 175.78 | 175.78 | 175.85 | 175.95 | 176.06 | 176.05 | 176.03 | 176.01 | 176.03 | 176.05 | 176.05 | 175.95 | 175.77 | 176.06 | 0.29 |
| 2002 | 175.99 | 175.95 | 175.99 | 176.06 | 176.19 | 176.29 | 176.33 | 176.32 | 176.24 | 176.14 | 176.01 | 175.91 | 176.12 | 175.91 | 176.33 | 0.42 |
| 2003 | 175.82 | 175.75 | 175.73 | 175.82 | 175.92 | 176.00 | 176.04 | 176.03 | 175.94 | 175.87 | 175.89 | 175.90 | 175.89 | 175.73 | 176.04 | 0.31 |
| 2004 | 175.87 | 175.84 | 175.90 | 175.98 | 176.12 | 176.31 | 176.37 | 176.33 | 176.28 | 176.15 | 176.10 | 176.08 | 176.11 | 175.84 | 176.37 | 0.53 |
| 2005 | 176.08 | 176.10 | 176.10 | 176.14 | 176.19 | 176.21 | 176.19 | 176.17 | 176.09 | 176.00 | 175.93 | 175.89 | 176.09 | 175.89 | 176.21 | 0.32 |
| 2006 | 175.88 | 175.92 | 175.93 | 176.01 | 176.09 | 176.14 | 176.14 | 176.13 | 176.04 | 175.99 | 175.94 | 175.98 | 176.02 | 175.88 | 176.14 | 0.26 |
| 2007 | 176.00 | 175.91 | 175.92 | 176.02 | 176.06 | 176.08 | 176.06 | 176.00 | 175.95 | 175.88 | 175.77 | 175.68 | 175.94 | 175.68 | 176.08 | 0.40 |
| 2008 | 175.70 | 175.76 | 175.78 | 175.92 | 176.04 | 176.16 | 176.24 | 176.22 | 176.18 | 176.09 | 176.00 | 175.97 | 176.01 | 175.70 | 176.24 | 0.54 |
| 2009 | 176.01 | 176.01 | 176.20 | 176.20 | 176.34 | 176.41 | 176.44 | 176.44 | 176.37 | 176.29 | 176.27 | 176.22 | 176.27 | 176.01 | 176.44 | 0.43 |
| 2010 | 176.15 | 176.11 | 176.09 | 176.11 | 176.13 | 176.20 | 176.26 | 176.24 | 176.16 | 176.07 | 175.96 | 175.86 | 176.11 | 175.86 | 176.26 | 0.40 |
| 2011 | 175.81 | 175.78 | 175.81 | 175.91 | 176.10 | 176.21 | 176.26 | 176.24 | 176.13 | 176.08 | 176.07 | 176.04 | 176.04 | 175.78 | 176.26 | 0.48 |
| All-Time/Tout les temps | ||||||||||||||||
| Average/Moyenne | 176.30 | 176.29 | 176.31 | 176.39 | 176.48 | 176.55 | 176.58 | 176.56 | 176.51 | 176.44 | 176.38 | 176.34 | 176.43 | 176.22 | 176.59 | 0.38 |
| Minimum/Minimale | 175.60 | 175.59 | 175.58 | 175.61 | 175.74 | 175.76 | 175.78 | 175.77 | 175.76 | 175.70 | 175.65 | 175.62 | 175.68 | 175.58 | 175.78 | 0.13 |
| Maximum/Maximale | 177.18 | 177.11 | 177.12 | 177.23 | 177.28 | 177.33 | 177.39 | 177.39 | 177.38 | 177.50 | 177.38 | 177.26 | 177.29 | 177.11 | 177.50 | 0.67 |
| 2002-2011 | ||||||||||||||||
| Average/Moyenne | 175.93 | 175.91 | 175.95 | 176.02 | 176.12 | 176.20 | 176.23 | 176.21 | 176.14 | 176.06 | 175.99 | 175.95 | ||||
| Lakes Michigan-Huron water levels in metres referred to Chart Datum | ||||||||||||||||
| Lacs Michigan-Huron niveau d'eau en mètres par rapport au zéro des cartes | ||||||||||||||||
| 2011 | -0.19 | -0.22 | -0.19 | -0.09 | 0.10 | 0.21 | 0.26 | 0.24 | 0.13 | 0.08 | 0.07 | 0.04 | ||||
| All-Time/Tout les temps | ||||||||||||||||
| Average/Moyenne | 0.30 | 0.29 | 0.31 | 0.39 | 0.48 | 0.55 | 0.58 | 0.56 | 0.51 | 0.44 | 0.38 | 0.33 | ||||
| Minimum/Minimale | -0.40 | -0.41 | -0.42 | -0.39 | -0.26 | -0.24 | -0.22 | -0.23 | -0.24 | -0.30 | -0.35 | -0.38 | ||||
| Maximum/Maximale | 1.18 | 1.11 | 1.12 | 1.23 | 1.28 | 1.33 | 1.39 | 1.39 | 1.38 | 1.50 | 1.38 | 1.26 | ||||